Basic College Mathematics (10th Edition)

Published by Pearson
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Chapter 8 - Geometry - 8.7 Volume - 8.7 Exercises - Page 586: 23

Answer

First error is use $D$ instead $r$ Second error is that volumes units is cubic Correct answer $V = 3.14*3.5^2*5 = 192.3cm^3$

Work Step by Step

We have $D = 7cm$, $h = 5cm$ and $V = 3.14*7*7*5 = 769.3cm^2$ Volume formula for a cylinder is $V = 3.14*r^2*h$ So the first error is to use $D$ instead $r$ And the second error is that volumes units is cubic Correct answer $V = 3.14*3.5^2*5 = 192.3cm^3$
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