## Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning

# APPENDIX D - Trigonometry - D Exercises: 16

#### Answer

$\frac{8}{\pi}$ cm

#### Work Step by Step

We use the formula $s=θr$. We solve the formula for $r$: $r=\frac{s}{θ}$. We plug in the given values and simplify: $r=\frac{6}{\frac{3\pi}{4}}=\frac{4\times6}{3\pi}=\frac{8}{\pi}$ cm.

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