Question

what is the perimeter of a square that has an area of 25 square feet?

Answer 1

We know that the perimeter of a squate is (Where x is the side of the square):

$P=4x$

and we know that the area is:

$A=x^2$

So we can repace the area to find x so:

$\begin{gathered} 25=x^2 \\ x=\sqrt[]{25}=5 \end{gathered}$

So the perimeter will be:

$P=4\cdot5=20$

So the perimeter is 20 feet