The area of a circle is 615.44

Question

. What is the diameter of the circle? Use 3.14 for π.
Responses
A 14 in14 in
B 18 in18 in
C 20 in20 in
D 24 in24 in
E 28 in

Answer 1

The area of a circle is calculated using the formula A = πr^2, where A is the area and r is the radius of the circle.

Given that the area is 615.44, we can set up the equation:
615.44 = 3.14 * r^2
r^2 = 615.44 / 3.14
r^2 = 196
r = √196
r = 14

Since the diameter of a circle is two times the radius, the diameter is 2 * 14 = 28 inches.

Therefore, the correct answer is E) 28 in.