Question

The area of a rhombus is 240 ${cm}^2$ and one of the diagonal is 16 cm. Find another diagonal.

Answer 1

Area $=\frac{1}{2}\times (d_1\times d_2),$ where $d_1$ and $d_2$ are diagonals

$\therefore 240=\frac{1}{2}\times 16\times d_2$

$⟹d_2=30cm$