Question

The wheel of a bike has a diameter of 27 inches. Find the circumference of the wheel. Round your answer to the nearest whole number.
A. about 42 inches
B. about 85 inches
C. about 170 inches
D. about 572 inches

Answer 1

the Answer is 85 inches

Answer 2

By definition, the circumference is given by:
 C = 2 * pi * R
 Where,
 R: Radio
 Substituting values we have:
 C = 2 * pi * (27/2)
 C = 84.82300165 in
 Round to the nearest whole number:
 C = 85 in
 Answer:
 The circumference of the wheel is:
 B. about 85 inches