Question

The diameter of a wheel is $1.26m.$ What the distance covered in $500$ revolutions

Answer 1

When a wheel rotates then the distance covered in one revolution is equal to the circumference of the circle.

$\begin{array}{cc}\text{Circumference}& =\pi d\\ & =\frac{22}{7}\times 1.26\\ & =22\times 0.18\\ & =3.96m\end{array}$

Distance covered in $1$ revolution is $3.96m.$ Hence, total distance covered in $500$ revolutions will be,

$\begin{array}{cc}\text{Total Distance}& =500\times 3.96\\ & =1980m\end{array}$