A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled

A lead pencil consists of a cylinder of wood with a 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, then find the volume of the wood and that of the graphite.

Given, diameter of the graphite cylinder
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