Question

In the figure, ABCD is a rectangle, AB = 14 cm and BC =7 cm. Taking DC, BC and AD as diameters, three semicircles are drawn as shown in the figure. Find the area of the shaded portion.

Answer 1

Answer:

Step-by-step explanation:

Area of the rectangle = length x breadth

=14 x 7

= 98 sq.cm

Area of the circles= pie x radius x radius

= r= 3.5cm

22/7 x 3.5 x 3.5

22 x 0.5 x 3.5

= 38.5 sq.cm

Area of half circle

R= 7cm

22/7 x 49

22 x 7

= 154 sq.cm

154/ 2 ( since only half is given)

= 77 sq.cm

Area of shaded region

=