Question

The face of a clock has a circumference of 147 inches. What is its area? Use 3.14 for 7.

Enter the correct answer in the box.

Answer 1

Explanation:

C = 2 * pi * r

C = 147

147 = 2 * pi * r

147 = 2*3.14 * r

147 = 6.28 * r

r = 147 / 6.28

r = 23.41

Area = pi r^2

Area = 3.14 * 23.41^2

Area = 3.14 * 547.92

Area = 1720.46