Question

What is the perimeter of a square of side 20 meters?

• A. 15 metres
• B. 80 metres
• C. 50 metres
• D. 120 metres

Answer 1

The correct option is B

80 metres

We know that perimeter of any square is four times the length of a side.

i.e., If '$s$' length of a side of a square, then its perimeter '$P$' is given by $P=4\times s$

Given, $s$ = 20 meters. Then the perimeter of the given square is,

$P=4\times 20=80\text{meters}$.