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01-12-2017
Mathematics

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Given a 10 foot length of tree trunk with a radius of 3 feet, what is the weight of the tree trunk section if it has a density of 45 lb/ft3?

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musiclover10045 musiclover10045

01-12-2017

treat the tree trunk as a cylinder

v= pi x r^2 x h

using 3.14 for pi

3.14 x 3^2 x 10 = 282.6 cubic feet

282.6 * 45 = 12, 717 pounds

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