3. A lead pipe 3 cm thick has inner diameter of 4 cm. Find  number of cubic centimeters of lead in a piece of 3 cm long.

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter65: Achievement Review—section Six
Section: Chapter Questions
Problem 70AR: Compute the number of cubic centimeters of iron required for the cast-iron plate shown. The plate is...
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3. A lead pipe 3 cm thick has inner diameter of 4 cm. Find  number of cubic centimeters of lead in a piece of 3 cm long.

4. A paint manufacturer needs a cylindrical steel drum to held 200 liters of roof paint. For handling convenience, it is necessary to limit the inside diameter to 30 cm. Find the height of the need drum.

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