Question

Find the area of the shaded region in Fig.12.20. if radii of the two concentric circles with the center O are 7 cm and 14 cm respectively and angel aoc is 40°​

Answer 1

Answer: the ans is given in photo above please click

9n tha picplease give the figer I tried my best to give you ansStep-by-step explanation:

Area of ring is given as 

π(R2−r2)=722×(196−49)=22×21=462area of ring sector is

 360x×area of ring ⟹36040×462=51.33cm2

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