Question

Find the length of the diagonal of a rectangle with area $1092$ sq cm and breadth $13$ cm.

Answer 1

Area $=l\times b$

$\Rightarrow 1092=l\times 13$

$\Rightarrow l=84$ cm

Length of diagonal $=\sqrt{{84}^2+{13}^2}$

$\Rightarrow$ Length of diagonal $=85$ cm