Answer
$r=6$ ft
Work Step by Step
The arc length can be computed using the formula $s=r\cdot \theta.$
Substitute the given values into the formula above to obtain:
$2=r\cdot\frac{1}{3}\\
2\cdot3=r\\
6=r$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 6 - Trigonometric Functions - 6.1 Angles and Their Measure - 6.1 Assess Your Understanding - Page 362: 73
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