Question

A circle has an area of 12.566.  What is the diameter? (round to the nearest whole number)

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Answer 1

diameter = 4

Explanation:

A=pi*r^2

12.566=pi*r^2

3.99988202979=r^2

r=1.99997050723

diameter = 2r

d=2(1.99997050723)

d=3.99994101446 =4