Question

Find the area of the semicircle. Round your answer to the nearest hundredth.

Answer 1

`18 * 18 * 0.25 * 0.5 * 3.14 = 127.17`

Answer 2

127.17

Explanation:

Area = pi * r^2 / 2

pi = 3.14

d = 18

r = d / 2

r = 18/2

r = 9

Area = 3.14 * 9^2 /2

Area = 3.14 * 81 / 2

Area = 254.34 / 2

Area = 127.17