Question

If the perimeter of a regular pentagon is $40$ cm, then length of its side is _ cm.

Answer 1

Perimeter of Regular Pentagon $=5\times \mathrm{Side}\mathrm{length}$

Therefore,

Side length of Pentagon $=\frac{\mathrm{Perimeter}}{5}$

$$\begin{gathered} =\frac{40}{5} \\ =8cm \end{gathered}$$

Hence, the length of side of the Pentagon is $8cm$.