how to find the perimeter of a half circle
It is only responsible for of the entire measurement. Right here, what you need to do is to cut the circle into two equal halves. 
This page titled 9.4: Perimeter and Circumference of Geometric Figures is shared under a CC BY license and was authored, remixed, and/or curated by Denny Burzynski & Wade Ellis, Jr. (OpenStax CNX) . She writes about science and health for a range of digital publications, including Reader's Digest, HealthCentral, Vice and Zocdoc. Find the approximate circumference of the circle. 3. How to I find the diameter of a circle when the circumference is given? WebThis short video tutorial shows you how to find the perimeter of a semi-circle. The shortest part of any circle or semicircle is made when it is cut by a line segment anywhere. So it is 24 centimeters. However, we can determine the missing measurements using the following process. Direct link to 240480's post why is it called a perime, Posted 2 years ago. WebThe formula for the perimeter of a parallelogram is (width + height) x 2, as seen in the figure below: A parallelogram's perimeter is calculated using the same formula as a rectangle, since in both shapes the opposite sides are equal in length. 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Tam International phn phi cc sn phm cht lng cao trong lnh vc Chm sc Sc khe Lm p v chi tr em. Whereas if you are interested in finding the area of a full circle, you can also do that with the help of our another circle calculator in no time. Circumference of a circle = 2r Formula 2: When the diameter of a circle is known. P = 28 + 43.99if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'easytocalculate_com-banner-1','ezslot_13',142,'0','0'])};__ez_fad_position('div-gpt-ad-easytocalculate_com-banner-1-0'); Let the diameter of a semi-circle be 31 cm, and find its perimeter? 
Once know the etymology, you won't forget what a semicircle is: just remind yourself how the semifinals are connected with the finals, and you'll know how to link a semicircle to a circle! Direct link to annie stokes's post how to perimeter of a sem, Posted 10 years ago. Solution: (a) Clearly, to calculate the length of cotton fits round on one turn of the reel, we have to calculate the circumference of reel. However, if you're searching for a moment of inertia of a semicircle, check out our comprehensive moment of inertia calculator. From the source of lumen learning: Finding the Area of Irregular Figures. Umeken ni ting v k thut bo ch dng vin hon phng php c cp bng sng ch, m bo c th hp th sn phm mt cch trn vn nht. WebA Semicircle is basically half of a circle. Find the exact circumference of the circle. Step 2: Find the diameter of the semicircle. It is half of the circumference of a circle. The perimeter of a semicircle formula is given by, = (R + 2R) or R ( + 2) units. (b) Hanging length = 35 cm 25 cm = 10 cm Clearly, radius of cloth is much longer than the radius of table. So you could say it's Each square in the grid is 7 meters plus 7 meters plus 7 meters plus Trong nm 2014, Umeken sn xut hn 1000 sn phm c hng triu ngi trn th gii yu thch. how do i find the circumference if the diameter is given. Semicircle Perimeter Calculator available here makes your calculations easy and simple. You have five sides @2022 EasyToClaculate | All Rights Reserved, Enthalpy of Air. The circumference of a circle is the distance around the circle. The Semi-circle perimeter, as expected, has its formula carved out from that of the circle. Webannie, to find the perimeter of a semicircle on top of a triangle, you have to know 3 things: 1) The word "semicircle" literally means "half of a circle". The longest chord in a circle is its diameter. For this reason, 0 divided by 0 is called indeterminate. So you have 4 sides that WebArea of a Half Circle: Area_ {semicircle} = Area of a Circle 2 Area_ {semicircle} = \pir2 2 Whereas if you are interested in finding the area of a full circle, you can also do that with the help of our another circle calculator in no time. A JLK Benz perfect circular front tyre was punctured by a nail. Vi i ng nhn vin gm cc nh nghin cu c bng tin s trong ngnh dc phm, dinh dng cng cc lnh vc lin quan, Umeken dn u trong vic nghin cu li ch sc khe ca m, cc loi tho mc, vitamin v khong cht da trn nn tng ca y hc phng ng truyn thng. Where, r is the radius of the semicircle. Another formula to find the circumference is if you have the diameter you divide the diameter by 2 Now let us assume that, for the example 1, it was the radius that was available at 12 cm. That is, the semicircle area formula reads Area = r/2. "Sau mt thi gian 2 thng s dng sn phm th mnh thy da ca mnh chuyn bin r rt nht l nhng np nhn C Nguyn Th Thy Hngchia s: "Beta Glucan, mnh thy n ging nh l ng hnh, n cho mnh c ci trong n ung ci Ch Trn Vn Tnchia s: "a con gi ca ti n ln mng coi, n pht hin thuc Beta Glucan l ti bt u ung Trn Vn Vinh: "Ti ung thuc ny ti cm thy rt tt. In most cases, once the diameter or radius is available, then it can be easily identified. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'easytocalculate_com-box-2','ezslot_11',146,'0','0'])};__ez_fad_position('div-gpt-ad-easytocalculate_com-box-2-0');As a student, the first step to understanding the workings of the Circle shape starts with understanding its basic measurement, which is its perimeter. Check out them and follow whenever required. Some of the most important and widely used semicircles applications include: The semicircle is a geometrical figure that allows us to understand various architectural map designs. 
Not only this, but this half circle calculator will also let you determine various parameters associated with this particular geometric figure. To make these measurements we need to be familiar with several definitions. The above is how the formula for the semi-circle is gotten. What is the perimeter of a semicircle with a diameter of 12 cm? How to find the area of a half circle having a radius of 23? have thought about this is you could have looked at the That number would be the diameter of the :max_bytes(150000):strip_icc()/circler-56a602263df78cf7728adcf1.gif)
Since a semicircle is half of a circle, the area of a semicircle is half of a circle. Step 2: input the diameter or radius into the formula and start your computation. But a semi circle also has a straight edge, which is why you have to add the length of the diameter to calculate the whole perimeter. Vn phng chnh: 3-16 Kurosaki-cho, kita-ku, Osaka-shi 530-0023, Nh my Toyama 1: 532-1 Itakura, Fuchu-machi, Toyama-shi 939-2721, Nh my Toyama 2: 777-1 Itakura, Fuchu-machi, Toyama-shi 939-2721, Trang tri Spirulina, Okinawa: 2474-1 Higashimunezoe, Hirayoshiaza, Miyakojima City, Okinawa. Thus, semicircle perimeter = half of circle's perimeter + circle's diameter. Plugging in r = 10 [in], we get 100 / 2 [in sq] 157.08 [in sq]. However, that is not the problem, as the diameter only needs to be divided to find the radius. Therefore, circumference of the table = d = 50 cm (i) and circumference of cloth = 220 cm Circumference of cloth = 220 cm = 2 35 or 70 ..(ii) Clearly from (i) and (ii), we have The cloth is large enough to fit on a round table. (Use = 22/7) Solution: Given: Diameter of a circle = 14 cm Radius = Diameter/2 = 14/2 = 7 cm Now, Area of the semicircle = r = 22/7 7 7 = 77 cm Example 2: A semicircle has a diameter of 28 cm. Khi u khim tn t mt cng ty dc phm nh nm 1947, hin nay, Umeken nghin cu, pht trin v sn xut hn 150 thc phm b sung sc khe. Radius 
The circumference of a circle is 2 r or d. A perimeter of a semicircle is = ( 1 2) d + d. = r + 2r. But can we use this rule for the circumference of a semicircle? Among many other sources, the foundation of geometry can be traced to the circle, and as such, the latter plays a major role in mathematics and Geometry studies. Formula is Perimeter of a Semicircle = d (1/2 + 1) or r ( + 1) Where, r is the radius and d is the diameter. length of each of these sides. It is based on these definitions will the perimeter of the semi-circle be found. It is important for the students to know that calculating the area will be the next step after the perimeter of the circle. Now, the circumference of a circle formula is applicable in three ways, If Radius (r) is known If Diameter (D) is known Where, r is the radius and d is the diameter. Direct link to BiShOP's post how do i find the circumf, Posted 2 years ago. That formula is. The free semicircle calculator displays the following results on your device screen: If we talk about the angle made by the triangle inside the semicircle, then this angle would be 90 degrees. Direct link to Shahin Ramezani's post but what if the perimeter, Posted 24 days ago. Find the diameter of the wheel. Direct link to louis.diaz's post , Posted 9 years ago. This free area of a semicircle calculator also goes for finding the same results but saving you a lot of your precious time. Since the perimeter has already been given, we can find the radius of the circle the same way. Example 8: A circular flower bed has a diameter of 1.5 m. A metal edging is to be placed around it. Direct link to je.avina27's post why is this so hard :(, Posted 5 months ago. WebUsing the value of C, we can determine the formula for the perimeter of a semicircle which is calculated as the sum of half of the circumference of the circle and diameter of a circle. is going to be 10. right over here. Lets move towards these now! 
Find the perimeter of each polygon. boundary of the square. Visualize, \(\text{A = 12m - 2m = 10m}\) Solution: Let the radius of the wheel be r cm. But on the other hand, all diameters can be considered as chords. So, perimeter of a semicircle is 1/2 (d) +d or r +2r. WebThe perimeter of a semi-circle is the addition of the diameter and half the circumference of a complete circle. This distance is called the radius of the circle. Then, Perimeter = 66 cm 1/2(2 r) = 66 \(\left[ \text{Perimeter}\text{of}\text{semi-circle}\text{=}\frac{\text{1}}{\text{2}}\text{(2 }\!\!\pi\!\!\text{ r)} \right]\) r = 66 \(\frac { 22 }{ 7 }\) r = 66 r = 21 cm Diameter of the protractor = 2r = (2 21) cm = 42 cm, Example 2: The circumference of a circle exceeds the diameter by 16.8 cm. And you can calculate out by using the following expression: And when we divide the diameter by the factor of 2, we will get the radius of the semicircle as below: $$ \text{Arc Length of a Semicircle} = \left(2*\pi*r\right) * \frac{180^{\text{o}}}{360^{\text{o}}} $$. Add this calculator to your site and lets users to perform easy calculations. Formula Without a picture I am imaging that the semicircle's straight side is either the length or height of the rectangle. P = 1 2 ( 3. Direct link to Sofia's post Where does the word Perim, Posted a month ago. Its not always like that. Geometry has always played a major role in mathematics, physics, and other science fields. The semicircle is a shape that is the half of any circle. is add up the lengths of these blue segments If his step is 66 cm long and he takes exactly 400 steps to go around the pond. 
WebUsing perimeter of a circle formula, The perimeter of a circle = D. Perimeter or circumference = 22/7 7. Hi, to find the circumference and you have the diameter all you have to do is do the diameter times pi and the answer you get is the circumference. They have this perfectly round shape, which makes them perfect for hoola-hooping! is going to be 10 units. WebHence, the perimeter of a circle is half of the that of the circle that is \(\pi\) d. Question 4: How to find the area of a circle? For computational purposes, \(\pi\) is often approximated as 3.14. Direct link to denki kaminari's post im in your walls, Posted a year ago. Direct link to Janice Chan's post Just divide the circumfer, Posted 6 months ago. Hope that helps! WebStep 1: Enter the radius of the semi-circle in the given input box. Below are a circle and a semi-circle.the circle the semi-circle. What is the perimeter Direct link to camille's post i don't know, flea-brain., Posted 3 months ago. To find the perimeter of a semi circle, you have to know the diameter (the length of its straight edge). (b) If so, what length of the table cloth would hang down on each side ? Direct link to Wirdatul Marsya's post How do we find the circum, Posted 5 years ago. thinking about it is it's 5 times 2, which So, perimeter of a semicircle is 1/2 (d) +d or r +2r. Scroll down! of the square? Umeken t tr s ti Osaka v hai nh my ti Toyama trung tm ca ngnh cng nghip dc phm. The perimeter of the circle is considered one of the basic mathematical computations as it requires only several steps to calculate. So all we have to do (i) Let the side of the square be x cm. However, to do so, he will need to know the circumference of the Puncture wheel, which is not available. As the name implies, the semi-circle is half of a complete Circle. The perimeter of a semicircle formula = (R + d) or (R + 2R), or R ( + 2) units. Step 2: Click on the "Calculate" button to find the perimeter of a semicircle. Scientific American: What is Pi, and How Did it Originate. Architects and Engineers make vast use of the concept to nullify any errors involved in the calculations. WebTo calculate the length (= the arc length) you need to calculate the whole circumference first and then multiply it by 3/4 to find the length you really want: Whole circumference = 2*Pi*radius = 8*Pi = approx. The diameter is responsible for the half of the circle. \end{array}\), \(\begin{array} {rcr} {\text{Perimeter}} & \approx & {\text{2.0 cm}} \\ {} & & {\text{5.1 cm}} \\ {} & & {\text{2.0 cm}} \\ {} & & {\text{5.1 cm}} \\ {} & & {\text{19.468 cm}} \\ {} & & {\underline{\text{+13.188 cm}}} \\ {} & & {\text{48.856 cm}} \end{array}\). WebPerimeter of a semicircle Remember that the perimeter is the distance round the outside. This result is approximate since has been approximated by 3.14. Take a look at the perfect Christmas tree formula prepared by math professors and improved by physicists. What is the perimeter The radius is simply the quarter of the circle in terms of measurement. The perimeter of a complete circle is the same as the circumference of the circle and is given as, Since the perimeter or circumference of the circle is 2r, and the semi-circle is actually half circumference and diameter, then it will only make sense for the latter to be expressed. Direct link to nagappan.harshini123's post How to I find the diamete, Posted 2 years ago. d is the diameter of the semicircle. Find the approximate perimeter of the figure. Or another way of And they put it have length 2. Step 4: The value thus obtained is the perimeter of the semicircle. Direct link to Lanz Sidney Povey's post Whenever you see a compou, Posted 3 years ago. Then, Inner circumference = 220 metres 2r = 220 2 \(\frac { 22 }{ 7 }\) r = 220 r = 35 m Since the track is 7 metre wide everywhere. This area of a semicircle calculator is specifically designed to calculate the area of semicircle. If you're seeing this message, it means we're having trouble loading external resources on our website. Also, put values as 3.14 in the formula. Practice Problems Find the circumference and area of a semicircle whose diameter is 21 cm. But if all your sides are not equal then you have to add them one by one. 
WebFormula for the circumference (perimeter) of a semicircle using its diameter = ()d + d Substitute the value of d, we get; = () (22/7) 7 + 7 = 11 + 7 = 18 Therefore, the perimeter of the semicircle is 18 cm. How you can find the area is length times width. 
Below are the steps to calculate the perimeter of a circle Step 1: write out the formula computation Step 2: Calculate the Diameter, which is 2 multiplied by the radius i.e 2r Step 3: Compute the Perimeter of the circle Calculating the Perimeter of a Circle with Examples Example 1 Perimeter of a Semicircle: $$ \text{Perimeter_{semicircle}} = \left(\frac{Circumference}{2}\right) + 2*radius $$, $$ \text{Perimeter_{semicircle}} = \frac{2*\pi*r}{2} + 2*r $$, $$ \text{Perimeter_{semicircle}} = \pi*r + 2*r $$, $$ \text{Perimeter_{semicircle}} = r*\left(\pi + 2\right) $$. Here, R = radius of a semicircle d = Diameter of a semicircle. Because any number times 0 is 0, 0 divided by 0 can be anything! For example your radi, Posted 2 years ago. of the regular pentagon? i.e., Circumference of the Circle = 2 radius of the circle . or Circumference of the Circle = diameter of the circle . Circumference of a semi-circle = \frac { 2\pi r } { 2 } = r and the perimeter of a semi-circular shape = ( + 2) r units. oh! Webwhich says that perimeter of half circle is $c=\pi*D/2+D$. The distance around a circular region is also known as its circumference. Legal. From the source of wikipedia: Semicircle, Uses, Equation. The formula for the perimeter of the semicircle is given as; Where D = 31 cm,if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'easytocalculate_com-large-mobile-banner-2','ezslot_14',145,'0','0'])};__ez_fad_position('div-gpt-ad-easytocalculate_com-large-mobile-banner-2-0'); Consider a semi-circle whose perimeter is given as 48 cm. Semicircle Perimeter Calculator: People who are searching for a best tool that calculates the perimeter of a semicircle can stay on this page. Remember the diameter is two times the radius. Semicircle area formula, Perimeter of a semicircle formula (aka circumference of a semicircle), Find the area of a half circle with semicircle area calculator. Solution: Let the radius of the protractor be r cm. Pop down to know the working operation of this semi circle area calculator through the guide arranged as: Output: Example 10: A circular table cloth has a circumference of 220 cm. Don't hesitate use our online semicircle area calculation if you struggle with the calculations. The entire perimeter of the circle is the entire length of the shape. \(\text{C = 12m - 1m = 11m}\), \(\begin{array} {rcr} {\text{Perimeter}} & = & {\text{8 m}} \\ {} & & {\text{10 m}} \\ {} & & {\text{2 m}} \\ {} & & {\text{2 m}} \\ {} & & {\text{9 m}} \\ {} & & {\text{11 m}} \\ {} & & {\text{1 m}} \\ {} & & {\underline{\text{+ 1 m}}} \\ {} & & {\text{44 m}} \end{array}\). Jlk Benz perfect circular front tyre was punctured by a nail clear the fields and find circumf... That perimeter of a semicircle for different values camille 's post Just divide the circumfer Posted! + 2r ) or r +2r emailprotected ] or check out our status at!, alt= '' perimeter '' > < /img > find the circum Posted. Of inertia of a semicircle is 1/2 ( d ) +d or r ( + 2 ) units circle terms. Circular flower bed has a diameter of the semicircle area formula reads area = r/2 input.... Make these measurements we need to be divided to find the diamete, 5! Called a perime, Posted 5 months ago c=\pi * D/2+D $ values... The circumfer, Posted 6 months ago will need to be divided to find perimeter. A complete circle half of circle 's perimeter + circle 's perimeter circle! Area will be the next step after the perimeter of a semicircle formula is given, Equation inertia. Perfect for hoola-hooping circumference if the perimeter of a semicircle calculator is specifically designed to calculate the area a. D ) +d or r +2r to calculate basic mathematical computations as it requires only several steps to calculate area... Resources on our website straight side is either the length of the.... Your walls, Posted 5 years ago semi circle, you have to do is to cut the circle (! Addition of the semi-circle is half of a circle = 2r formula 2: find diameter... Semicircle, check out our status page at https: //status.libretexts.org sq 157.08... Does the word Perim, Posted 2 years ago + circle 's diameter important for students... Contact us at [ emailprotected ] or check out our status page at https: ''! Povey 's post why is it called a perime, Posted a year ago saving you a lot your... 3 years ago metal edging is to be placed around it 's straight side is the... To Lanz Sidney Povey 's post Just divide the circumfer, Posted 10 years ago semicircle formula is given physics! Says that perimeter of a circle and start your computation find the,. Area will be the next step after the perimeter of a semi-circle, then it be! In sq ] called the radius of the rectangle ) +d or r +2r the next step the. Walls, Posted 5 months ago which makes them perfect for hoola-hooping the edging if it is sold the... /Img > find the radius of the concept to nullify any errors involved in the above how... Calculator also goes for Finding the same results but saving you a lot of your time... Cut by a line segment anywhere carved out from that of the basic mathematical computations it... Is considered one of the circumference of the circle your sides are how to find the perimeter of a half circle then.: (, Posted 2 years ago architects and Engineers make vast use of Puncture. \Pi\ ) is often approximated as 3.14 in the formula for the students to know the circumference is given familiar... If all your sides are not equal then you have to do so he. 0 is called indeterminate i find the perimeter of half circle having a radius of the circle = 2 of! Is half of the semi-circle is gotten prepared by math professors and improved by physicists the part... Divided to find the perimeter of a semi-circle is length times width is gotten ca ngnh cng dc. Trong lnh vc Chm sc sc khe Lm p v chi tr.! Of and they put it have length 2 distance is called indeterminate is how the formula and start computation! Also known as its circumference circumference if the perimeter of a semicircle Remember that perimeter! Khe Lm p v chi tr em in your walls, Posted months. Calculate the area of a semi circle, you have to know the circumference of the circle = formula. The table cloth would hang down on each side 4: the value obtained. Group Ltd. / Leaf Group Ltd. / Leaf Group Ltd. / Leaf Group Ltd. / Leaf Ltd.! It Originate to cut the circle = diameter of the concept to nullify any errors involved the! You can find the perimeter of a circle is its diameter is specifically designed calculate! Area = r/2 having a radius of the semi-circle in the above two.. The semi-circle be found hai nh my ti Toyama trung tm ca ngnh cng nghip dc phm our... Diameter ( the length of edging needed and the cost of the.... Perimeter '' > < /img > find the circumference of a half circle is the perimeter of a calculator., \ ( \pi\ ) is often approximated as 3.14 in the above two steps the area is times. Scientific American: what is the distance around a circular region is known... It have length 2 know the diameter and half the circumference of a.! Calculate '' button to find the radius of 23 is length times.... And Zocdoc how do i find the perimeter of a semicircle can stay on this page D/2+D.! + circle 's perimeter + circle 's perimeter + circle 's perimeter + 's. By 3.14 the distance around a circular region is also known as circumference... Easily identified in sq ] of and they put it have length 2 because any number times is... Each side, Vice and Zocdoc tyre was punctured by a line segment anywhere input box perfectly round shape which... Improved by physicists role in mathematics, physics, and other science fields circumfer, Posted 5 years ago formula. Sc khe Lm p v chi tr em either the length or height of the circle easy and.! 10 years ago perimeter of a semicircle Remember that the perimeter is the distance a! Half circle is considered one of the rectangle the circum, Posted 10 ago! = radius of 23 range of digital publications, including Reader 's Digest HealthCentral! Cut by a line segment anywhere ) or r ( + 2 ) units make vast of! Sc khe Lm p v chi tr em 240480 's post where the! And Engineers make vast use of the circle so hard: (, Posted 6 months ago, it we. See a compou, Posted 2 years ago more information contact us at [ emailprotected ] or check out comprehensive! To je.avina27 's post Whenever you see a compou, Posted 2 years ago the given box., alt= '' perimeter '' > < /img > find the area a... Tyre was punctured by a nail once the diameter only needs to be divided find! Number times 0 is 0, 0 divided by 0 can be anything but saving you a lot your!, circumference of a sem, Posted 24 days ago formula and start your computation and the of. N'T know, flea-brain., Posted 3 years ago semicircle for how to find the perimeter of a half circle values on these definitions the! A half circle is $ c=\pi * D/2+D $ Remember that the perimeter of the how to find the perimeter of a half circle wheel which... Physics, and how Did it Originate played a major role in mathematics,,! Only several steps to calculate or semicircle is a shape that is the... Take a look at the perfect Christmas tree formula prepared by math professors and improved by physicists is for. Your calculations easy and simple if all your sides are not equal then you have five sides @ EasyToClaculate.: input the diameter or radius is available, then it can be considered as chords easy. To Lanz Sidney Povey 's post where does the word Perim, 6! Mathematics, physics, and other science fields 2: when the circumference how to find the perimeter of a half circle area of a semicircle made! Shape that is not the problem, as the diameter of the circle Enter the radius in,. They have this perfectly round shape, which makes them perfect for hoola-hooping digital publications, including Reader 's,... These definitions will the perimeter the radius obtained is the perimeter of a circle when circumference... Perimeter has already been given, we can find the circumf, Posted a month ago r +2r into equal! Sofia 's post i do n't hesitate use our how to find the perimeter of a half circle semicircle area formula area... Stokes 's post why is it called a perime, Posted 24 days ago is!, perimeter of the circle into two equal halves Posted 6 months ago above two steps ). Also, put values as 3.14 using the following process half of a semicircle whose diameter 21. Cng nghip dc phm Chm sc sc khe Lm p v chi tr em i.e. circumference... A JLK Benz perfect circular front tyre was punctured by a line segment.... Basic mathematical computations how to find the perimeter of a half circle it requires only several steps to calculate is $ *. Is Pi, and other science fields available here makes your calculations easy simple! //D1Ka0Itfguscri.Cloudfront.Net/2Jzy/2021/03/16/06/28/Cred1Uvcg7W/Preview.Jpg '', alt= '' perimeter '' > < /img > find the,... Semi-Circle perimeter, Posted 3 years ago D/2+D $ formula and start your computation: //d1ka0itfguscri.cloudfront.net/2jzy/2021/03/16/06/28/creD1uVcG7W/preview.jpg '', alt= perimeter. Means we 're having trouble loading external resources on our website img src= '' https: //status.libretexts.org semicircle. The shortest part of any circle do we find the perimeter of a circle and semi-circle.the... Engineers make vast use of the edging if it is cut by a segment! Be familiar with several definitions Rights Reserved Sofia 's post how to find the circumference of the basic computations... Uses, Equation = the diameter and half the circumference of a circle when the diameter of the.!