Question

the given figure of 4 small semi circle and big semi circle. if smaller semi circle are of equal radii . find area and perimeter of the shaded region given radii of bigger circle is 42cm​

Answer 1

Answer:

here is your answer! happy learning

Answer 2

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