Question

What is the circumference of a circle with a diameter of 10 inches? (use 22/7 for pi)

A. 30 in
B. 31 in
C. 28 in
D. 31 in.

Answer 1

Answer: 31 inches approximately

Work Shown:

C = pi*diameter

C = (22/7)*(10)

C = 31.42857

C = 31 inches approximately

The result is approximate because I rounded to the nearest whole number, and also because pi = 22/7 is approximate.