Answer
$24.62147$ cm
Work Step by Step
$tan\theta=\frac{opp}{adj}$
$tan(\frac{2\pi}{5})=\frac{x}{8 }$
Need to solve for $x$.
$x=tan(\frac{2\pi}{5})\times 8$
Hence, $x= 24.62147$ cm
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
APPENDIX D - Trigonometry - D Exercises - Page A 32: 37
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