Question

Diagonal of a rectangular is $25cm$ and length is $20cm$. Find the area of rectangle?

Answer 1

Diagonal of rectangle $=25$cm

Length of rectangle $=20$ cm

Breath of rectangle $=\sqrt{{\left(diagonal\right)}^2-{\left(length\right)}^2}$

$\begin{array}{c}=\sqrt{{25}^2-{20}^2}\\ =15\end{array}$

Area =length$\times$ breath

$\begin{array}{c}=15\times 20c{m}^2\\ =300c{m}^2\end{array}$