Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.5 - Formulas and Problem Solving - Exercise Set - Page 146: 10


A = 50.24

Work Step by Step

Substitute the value for r into the equation: A = $\pi(r)^{2}$ A = $\pi(4)^{2}$ Solve for A: A = 3.14*16 A = 50.24
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