Question

If the area of circle is 39.5sq cm then the circumference is

Answer 1

Hello,

Here we go.

Given

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Let C(o,r) be the given circle with area equal to 39.5 cm²

To find

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Circumference of the circle

Solution

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Area = 39.5 cm²

π r² = 39.5

r² = 39.5/π

= 39.5*7/22

r = √12.56

= 3.54 cm

Hence with the help of this radius you can find the circumference of the circle.