Question

Area of a rhombus is 75 cm2 and its height is 5 cm What is the perimeter of the rhombus

Answer 1

Suppose each side of rhombus is a.
And height of rhombus = 5 cm
So area of rhombus = $a\times 5=75{\mathrm{cm}}^2$
$$\begin{gathered} \Rightarrow 5a=75 \\ \Rightarrow a=\frac{75}{5}=15 \end{gathered}$$
So each side of rhombus = 15 cm
Therefore the perimeter of rhombus = $4\times \mathrm{each}\mathrm{side}=4\times 15=60\mathrm{cm}$