Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 8 - Section 8.4 - Circumference and Area of a Circle - Exercises - Page 386: 38

Answer

77.68 in

Work Step by Step

The center of the pulleys are 20 in apart The radius of the pulley is 6 in We need to find the length of the belt used in the pulley system The total pulley length = 20 + 20+ 2* (2πr)/2 = 40 + 2π* 6 = 40 + 12π = 40 + 37.68 =77.68 in
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