Question

Find the circumference of a circle that has a diameter of 5 inches. Use 22/7 for pi.

15 in.
22/35 in.
15 3/7 in.
15 5/7 in.

Answer 1

step 1. The circumference (c) of a circle is equal to the diameter of a circle x pi. c = d(pi) = 5pi

step 2. c = 5pi = 5(22/7) = 110/7 = 15 5/7.