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A belt' is passing round two pulleys of radii 5cm and 10cm respectively making two exterior common tangents and two arcs. If the distance

A belt' is passing round two pulleys of radii 5cm and 10cm respectively making two exterior common tangents and two arcs. If the distance between the centers of the two pulleys is 18cm, find the total length of the exterior common tangents to 1 decimal place. (2mks)

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