Question

# The radius of the circle given above is 7 cm and the angle subtended by the arc is 60∘. If the area of △OAB is 21cm2, then the area of segment APBA is___ .[Take the value of π as 227] 5.8 cm2 4.7 cm2 8 cm2 1 cm2

Solution

## The correct option is B 4.7 cm2 Area of sector OAPB=60360×πr2=60360×227×72=25.7 cm2Area of segment APB = Area of sector OAPB - Area of triangle OAB=25.7−21=4.7 cm2 Therefore, area of segment APB=4.7 cm2

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