UrFind the difference of the areas of a sector of angle 120Â° and it – InterviewSolution

1.	UrFind the difference of the areas of a sector of angle 120Â° and its corresponding majoncircle of radius 21 cm.
Answer» Difference in areas = (22/7 x 21 x 21 - 120/360*22/7 x 21 x 21) cm^2= (1 - 1/3)(66x21) cm^2= 66x7x2 cm^2= 924 cm^2

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