Question

The perimeter of a semicircle is 10.28 centimeters. What is the semicircle's area?

Answer 1

Semicircle is looks like a D ;

perimeter of semicircle is = 2r+πr;

Here r is the radius of semicircle;

10.28 = {2+π} r;

we know that π = 3.14;

10.28 = (2+3.14)r;

10.28 = 5.14 r;

r = 10.28/5.14 = 2 cm

Answer 2

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