Question

Find the area of a square, if the measure of its each diagonal is $12cm$.

Answer 1

Area of a square if diagonal length $d$ is given $=\frac{d^2}{2}$

Given: $d=12cm$

$\Rightarrow$ Area $=\frac{(12{)}^2}{2}=\frac{144}{2}$

$\Rightarrow$ Area $=72c{m}^2$