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A lead pencil consists of a cylinder of wood with solid cylinder of graphite filled in the interior. The diameter of the pencil is 7 mm and the diameter of the graphite is 1 mm. If the length of the pencil is 14 cm, find the volume of the wood and that of the graphite. [ Assume π = 22/7 ]

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Radius (r2) of graphite = 91/2) mm = (0.1/2 0 cm = 0.05 cm

Height (h) of pencil = 14 cm

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