Question

If the area of a square is $64$ sq. units, then its perimeter is .

• A. $32$ units
• B. $64$ units
• C. $16$ units

Answer 1

The correct option is A $32$ units

Given the area covered by a square $=64$ sq. units
Let $a$ be the length of the square.
Now, we know area of a square $={\text{side}}^2$
$\Rightarrow 64=a^2\Rightarrow a=\sqrt{64}=8$ units
Now, we know the side,
$\therefore$ Its perimeter $=4\times a=4\times 8=32$ units.