Respuesta :

Answer:

 100.53cm

Step-by-step explanation:

the formula = A = pi * r^2/2

So, the formula for the area of a semicircle is A = pi * r^2/2.

pi= 3.14

A = 3.14 * 8^2/2. 8^2 is 64, so A = 3.14 * 64/2.

hope this helped!!!!! =) (i'm also learning but i know i am right!!!)