Question

Calculate the area of the shaded region in the Fig. 11.3.
1.5 m
27 m
1.5 m
1.5 m
1 1.5 m
43 m​

Answer 1

Answer:

REF.Image

Given ABCD is a square of side = 14 cm

side of square= 4× radius of circle

14=4 r

r=414=27cm

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

Area = (a)2−[3×π×(27)2]

=(14)2−487π

Area =196−487π=196−68.29

Area = 196-68.29

[Area of shaded region = 127.71cm2]