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The area of a semicircle is 6.28 square miles. What is the semicircle's perimeter?

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asked Feb 16, 2018 in GEOMETRY by Alyssa G Rookie

1 Answer

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The area of a semicircle is 6.28 square miles.

The area of a semicircle is (pi/2)r^2

(pi/2)r^2 =6.28

r^2 =4

r =2 miles

Calculate semicircle's perimeter.

P =pi*r =2pi miles

answered Mar 27, 2018 by johnkelly Apprentice

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