Question

Priya rode her bike 1250 ft. If her bike wheel has a diameter of 2.5 ft, how many times did her wheel make a full rotation?

Answer 1

Given:

The diameter of wheel is 2.5 ft.

The equation of a circumference of circle is,

`\begin{gathered} C=\pi d \\ C=\pi(2.5) \\ C=7.854\text{ ft} \end{gathered}`

As priya rode her bike 1250 ft.

The number of times the wheel of her bike make full roration is given by,

`\begin{gathered} \frac{Dis\tan ce}{\text{circumference of one rotation}} \\ =(1250)/(7.854) \\ =159.15 \end{gathered}`

Answer: The wheel make a full rotation 159 (approximately) times.