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OpenStudy (jjuden):
What is the area of a circle whose radius is 20 meters?
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OpenStudy (anonymous):
The formula for the area of a circle is pi*radius^2. The radius is 20 meters, so you'd have 20^2 pi. Can you simplify that?
OpenStudy (anonymous):
All right, since I'm receiving no response, 20^2 is 400, so you'd have 400pi m^2 as the area. If you wanted exact numbers, 400pi is about 1256.637.
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