Question

The length of one side of a parallelogram is 18 cm and the length of perpendicular on it from its opposite side is 8 cm. The area of the parallelogram is
(a) 144 cm²
(b) 72 cm²
(c) 100 cm²
(d) 48 cm²

Answer 1

(a) 144 cm²

Area of a parallelogram = $\left(b\times h\right)$ (Where b is the length of one side of the parallelogram and h is the perpendicular distance of the opposite side)

Thus, we have:

$$\begin{gathered} \mathrm{Area}\mathrm{of}\mathrm{parallelogram}=b\times h \\ =18\times 8 \\ =144{\mathrm{cm}}^2 \end{gathered}$$