Which formula will calculate out the area of the half circle?
Select one:
a. 3.14 x 1.7 x 1.7 ÷ 2
b. 3.14 x 3.4 x 3.4 ÷ 2
c. 3.14 x 3.4 x 7.2
d. 3.14 x 3.4 x 3.4
