Answer
$a= 571m$, $b= 777m$, $B= 53^\circ40'$
Work Step by Step
Use the definitions of sine and cosine, we have $a=964sin(36^\circ20')\approx571m$, $b=964cos(36^\circ20')\approx777m$, and angle $B=90^\circ-36^\circ20'=53^\circ40'$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 5 - Trigonometric Functions - 5.4 Solutions and Applications off Right Triangles - 5.4 Exercises - Page 547: 15
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