hanvoldc4892 hanvoldc4892

04-12-2017
Mathematics

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The area of a circle depends on the radius. Use the equation A(r) =pi r2 to compute A(7). Round your answer to the nearest hundredth.

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ahmedishaal ahmedishaal

14-12-2017

the equation is given to compute A(7) = A(r) pi r²
7 = pi r²
r² = 7/pi
value of pi = 3.14
so,
r² = 7/3.14
r = √ (7/3.14)
r = 1.49

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