Question

A bicycle wheel is 63 centimeters from top to bottom . When the wheel goes all the way around one time , the bicycle travels 198 centimeters . How can this information be used to estimate the value of pi

Answer 1

Given :

A bicycle wheel is 63 centimeters from top to bottom .

So, the diameter of the wheel = 63 cm

When the wheel goes all the way around one time , the bicycle travels 198 centimeters .

So, the circumference of the circle = 198 cm

The circumference of the circle of diameter = d will be :

`\pi\cdot d`

So,

`\begin{gathered} \pi\cdot63=198 \\ \\ \pi=(198)/(63)=(22)/(7) \end{gathered}`