Question

The diameter of a bicycle wheel is 88 centimeters. To the nearest integer, how far does the bicycle travel when the wheel makes 22 revolutions?

Answer 1

To start we need the radius which is half the diameter.

So our radius is 44

the area of the whell is pi * r^2
and r is the radius

pi *44^2

= 1936π and this is 1 revolution

So the to find the distance the bike goes we do 1936π * 22 = 42592π