Question

The perimeter of a regular heptagon is 77 cm. What is the length of each side?

• A. 11 cm
• B. 7 cm
• C. 10 cm
• D. 70 cm

Answer 1

The correct option is A

11 cm

Perimeter of a regular polygon = number of sides $\times$ length of each side

Given,
perimeter of a regular heptagon = 77 cm

Regular heptagon has 7 equal sides.

$\Rightarrow$ Perimeter of a regular heptagon
= 7 x length of the side
$\Rightarrow$ Length of the side = $\frac{Perimeter}{7}$
= $\frac{77}{7}$
= 11 cm