What is the area of a semicircle whose perimeter is 72cm

A = 307.9 sq/cm

Step-by-step explanation:

Find the radius of the semi-circle

diameter + half the circumference = 72 cm

2r + pi*r = 72

r(2+pi) = 72

r = 72%2F%28%282%2Bpi%29%29

r = 14

:

what will be the area of that semicircle?

A =1%2F2*pi%2A14%5E2

A = 307.9 sq/cm

the answer is 307.9

Step-by-step explanation:

i thinkkk

Solve for x

Step-by-step explanation:

Pythagorean theorem. (Root 80 ^ 2) - (8^2) = (80) - (64) = 16 Root16 = 4 and since the bottom angles are the same you just multiply your Answer by two to get x. So x=8