Question

D
2. Find the area of the shaded portion in the figure where
ABCD is a nectangle 20 cm long and the three chicles
have the same radi,​

Answer 1

REF.Image

Given ABCD is a square of side = 14 cm

side of square= 4× radius of circle

14=4 r

r=

4

14

=

2

7

cm

now area of shaded region = Area of square - (2× area of circle +2 × area of semi-circle)

Area = (a)

2

−[3×π×(

2

7

)

2

]

=(14)

2

−

4

87π

Area =196−

4

87π

=196−68.29

Area = 196-68.29

[Area of shaded region = 127.71cm

2

]