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it is pi..... wait no it isnt.....pi squared to the one half power is not pi...
Area = pi*r2 = 100 so r2 = 100/pi and therefore, r = sqrt(100/pi) = 10/√pi = 5.64 cm
The formula for finding the area of a circle is pi times the radius squared. Let's find the radius of the circle. 100 pi/ pi= 100. Squarerooted, the radius is 10. The formula for finding the circumference of a circle is 2 times pi times the radius. So, plug in: 2 times pi times 10 equals 20 pi! Your final answer: 20 pi (or, if you use decimals, approximately 62.8)
Using 3.14 as Pi the area of circle is: 0
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679