Question

If the perimeter of a semicircle is 144 m find its area

Answer 1

Answer:

corcumfernce of semicircle

1/2 2pir r = 144

pie r = 144

r = 144/ pie...(1)

area of semicircle = 1/2 pie r^2

= 1/2 × 3.14 × 144/3.14 × 144/3.14

= 330.91 m2