Question

If the perimeter of a regular pentagon is 100 cm, then the measure of each side is cm

• A. 20
• B. 25
• C. 10
• D. 30

Answer 1

The correct option is A 20

Regular pentagon is a polygon of 5 sides with equal length.
Let each side of the pentagon be $x\text{cm}$
$\therefore \text{Perimeter of the regular pentagon}=5x$
$\Rightarrow 5x=100$
$\Rightarrow x=20\text{cm}$
$\therefore$ Side of the pentagon = 20 cm