Question

The adjacent figure consists of four semi circles of equal raddi and two big semi circles of equal raddi (each 42cm)find the area of the shaded region ​

Answer 1

Answer:

Area of shaded region =2×area(AOBPA)

Area AOBPA = Area of small semi-circle + Area of large semi-circle - Area of small semi-circle

= Area of large semi-circle =

2

1

×

7

22

×42×42=2772cm

2

∴ Area of shaded region = 2×2772 = 5544cm

2

Step-by-step explanation:

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