Answer:
To find the radius, just take half of the diameter. The answer is 2.
Step-by-step explanation:
Semicircle Area and Perimeter
Area (A)
6.2832in²
A = πr²/2 = 2 * π [in²] ≈ 6.2832 [in²]
Perimeter (L)
10.2832 in
L = πr + d = 2 * π + 4 [inch] ≈ 10.2832 [inch]
Hope this helped!!!
