5 cm
20. An elastic belt is placed around the rim of a pulley of radius
5 cm. (Fig.) 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, 10cm from the point O. Find the length of the belt that
is still in contact with the pulley. Also find the shaded área.
(User=3.14 and 13 =1.73).
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Answer:
answer is 2. by applying the step deviation method
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