1 Answer

Thomson Varghese · Answer 1 · 2020-10-25T23:03:53+0000

Answer:

$\large\boxed{C=87.92\ in}$

Explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

We have A = 615.44 in². Substitute:

$615.44=\pi r^2$

$\pi\approx3.14$

3.14r^2=615.44 divide both sides by 3.14

$r^2=196\to r=√(196)\\\\r=14\ in$

The formula of a circumference of the circle:

$C=2\pi r$

Substitute:

$C=2\pi\cdot14=28\pi\approx28\cdot3.14=87.92\ in$

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