Question

In the figure, the radius of the circle and the semi-circles is 7 cm.
Find the area of the shaded region.

• A. 27
• B. 30
• C. 22
• D. 35

Answer 1

The correct option is A

27

From the figure, two circles of radius 7 cm
exist in the rectangle.

Their total area
$=2\pi r^2=2\pi \times 49=308c{m}^2$

Area of rectangle
$=28\times 14=392c{m}^2$

Required area
$=392-308=84c{m}^2$.