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Edward measured the button on his shirt. Then he calculated that it has an area of 50.24 square millimeters. What is the button's radius?

 Mar 10, 2020
edited by Guest  Mar 10, 2020
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Assuming it is a circular shaped button

 

area of circle = pi r^2

 

50.24 = pi r^2

 

sqrt (50.24/pi) = r

 Mar 11, 2020

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