Question

Consider a square of side length $1$ unit. What is its area?

Answer 1

You know that the area of a square is $l^2$, where $l$ is the length of the square.

And its perimeter is $l+l+l+l=4l$.

Thus, the area of a square of side length $1$ unit is $(1{)}^2=1sq.unit$ and its perimeter is $4$ units.

Hence, the answer is $1$.