Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 1, Equations and Inequalities - 1.4 Rewrite Equations and Formulas - 1.4 Exercises - Problem Solving - Page 32: 36a


$r=\dfrac{(P-2x)}{2 \pi}$

Work Step by Step

As we are given that, $P=2\pi r+2x$ Subtract $2x$ from each side. The, we have $P-2x=2 \pi r$ Now, divide each side by $2\pi$. The formula for $r$ can be defined as: $r=\dfrac{(P-2x)}{2 \pi}$
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