Question

Please help asap thankyou

Answer 1

A = 648π cm²

Explanation:

the area (A) of a semicircle is half the area of a circle , then

A =
`(1)/(2)` πr² ( r is the radius ) , then

A =
`(1)/(2)` × π × 36² =
`(1)/(2)` × π × 1296 = 648π cm²