Question

Find the area of the shaded portion from the measurement given in the figure.

Answer 1

Total area of given figure $length\times breadth=30\times 20=600c{m}^2$

Area of triangle $=\frac{1}{2}\times Base\times Height=\frac{1}{2}\times 20\times 10=100c{m}^2$

Area of shaded region $=(600-100)c{m}^2=500c{m}^2$