Question

Find the area of the shaded portion in the following figures

Answer 1

Area of the given figure = Area of section with 6 cm + Area of square with side measure 12 cm + Area of semi-circle with radius 6 cm
$=\frac{22\times 6\times 6}{7\times 4}+(12{)}^2+\frac{22\times 6\times 6}{7\times 2}=\frac{11\times 18}{7}+144+\frac{11\times 36}{7}=\frac{198}{7}+144+\frac{396}{7}=\frac{198+1008+396}{7}=\frac{1602}{7}=228.85c{m}^2$
Hence, area of the given figure is $225.85c{m}^2$