Question

area of the square is 81 square inches. length of one side is represented by X. what is the value of x?

Answer 1

The area of a square is given by:

`A=l^2`

Where:

l = length of one of its sides:

Since the area is 81, and the length of one of its sides is x, then:

`81=x^2`

Take the square root of both sides:

`\begin{gathered} \sqrt[]{81}=\sqrt[]{x^2} \\ 9=x \\ x=9 \end{gathered}`