+1667 The formula for finding the area of a circle is pi*r^2. First, find the radius of the circle. As an example, let's say that the radius of the circle is 4 (if only a diameter is given, divide the diameter by 2 points o find the radius). Then, do 4^2 (4 squared), which is 16. Then, multiply r^2 by pi (approximately 3.14, but to be specific, pi goes infinitely) 16*3.14 is 50.24, which means the area of a circle with a radius of 4 is approximately 50.24.
P.S. If you have a calculator, there may be a pi symbol (π), which gives you a more accurate value for pi. If there isn't, but you still want to be specific, you can use what I remember from a few years ago (3.14159265358979323)
+1667 The formula for finding the area of a circle is pi*r^2. First, find the radius of the circle. As an example, let's say that the radius of the circle is 4 (if only a diameter is given, divide the diameter by 2 points o find the radius). Then, do 4^2 (4 squared), which is 16. Then, multiply r^2 by pi (approximately 3.14, but to be specific, pi goes infinitely) 16*3.14 is 50.24, which means the area of a circle with a radius of 4 is approximately 50.24.
P.S. If you have a calculator, there may be a pi symbol (π), which gives you a more accurate value for pi. If there isn't, but you still want to be specific, you can use what I remember from a few years ago (3.14159265358979323)
First thing you do is find pi on your calculator. pi looked like this ~
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Then you find your radius. Your radius is the number sitting there so let's say it is 8. You to pi *8. Then you find the square button multiply it by that and then you are done
+17 You take the radius times the radius. Then you take the answer times pi.
