Answer
(a, A) = { (4, 64$\pi$), (7, 91$\pi$), (10, 100$\pi$), (13, 91$\pi$), (16, 64$\pi$) }
Work Step by Step
Use the formula $A= \pi a (20-a) $ to find:
(a, A) = { (4, 64$\pi$), (7, 91$\pi$), (10, 100$\pi$), (13, 91$\pi$), (16, 64$\pi$) }
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - P.S. Problem Solving - Page 157: 3b
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