Question

What is the distance travelled by a circular wheel of diameter d cm is one revolution?

Answer 1

Dear Student,


$$\begin{gathered} \mathrm{Distance}\mathrm{travelled}\mathrm{by}\mathrm{a}\mathrm{circular}\mathrm{wheel}\mathrm{in}\mathrm{one}\mathrm{revolution}=\mathrm{Circumference}\mathrm{of}\mathrm{circular}\mathrm{wheel} \\ =2\mathrm{\pi r} \\ =\mathrm{\pi }\left(2\mathrm{r}\right) \\ =\mathrm{\pi d}\mathrm{cm}. \end{gathered}$$

Regards