Question

If the diameter of a circle is 6 inches, what is the area?

a. 3π in.^2
b. 6π in.^2
c. 9π in.^2
d. 36π in.^2

Answer 1

diameter = 6 in => radius = 6/2 = 3 in

area = pi*r^2 = pi*3^2 = 9pi in^2

so choice c. is right sure

hope helped