Question

find athe length of side of a square with area 225 square units

Answer 1

Given, the area of a square, A=225 square units.

The equation of the area of a square is,

$A=a^2$

Here, a is the length of a side of the square.

Put A=225 in the above equation and find a.

$\begin{gathered} 225=a^2 \\ \sqrt[]{225}=a \\ 15=a \end{gathered}$

Therefore, the length of a side of the square is 15 units.