Mathematics
Shorn1951
23

The exact area of a circle is 81 pi square inches what are the radius and diameter of the circle

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(2) Answers
Shayne381

area is pi*r^2 so if area is 81pi, means r=9 diameter is 2*pi*r =2*pi*9=18pi

Dodi

To get the radius multiply 254.34 by 2 which is 508.68 and to get the radius you divide 254.34 by 2 and you get 127.17

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