Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises - Page 112: 28


r$\approx$3.5 m

Work Step by Step

Use the Circumference formula C=2$\pi$r to solve for the radius represented by r. Since we are given that the circumference is 22, plug 22 in for C giving you: 22=2$\pi$r Divide both sides by 2$\pi$; remember that $\pi$$\approx$3.14. This leaves us with the answer r$\approx$3.5.
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