The area of a circle is 615.44 in2

Question

. What is the diameter of the circle? Use 3.14 for π.
Responses
A 24 in
B 20 in
C 18 in
D 14 in
E 28 in

Answer 1

The formula for the area of a circle is A=πr^2, where r is the radius of the circle. Since we have the area, we can solve for the radius:

615.44 = 3.14r^2
r^2 = 196
r = 14

The diameter of the circle is twice the radius, so the answer is:

D) 28 in