ConceptProblems Based on Areas and Perimeter Or Circumference of Circle, Sector and Segment of a Circle

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#### Question

An elastic belt is placed around the rim of a pulley of radius 5 cm. (Fig. 10) From one point C on the belt, the elastic belt is pulled directly away from the centre O of the pulley until it is at P, 10 cm from the point O. Find the length of the belt that is still in contact with the pulley. Also find the shaded area (use *π* = 3.14 and `sqrt3=1.73)`

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