Answer
$b \approx6.43, A =50^\circ,
a \approx7.66$
Work Step by Step
Given $c=10, B=40^\circ$, we have $b=c\ sinB=10sin40^\circ\approx6.43, A=90^\circ-40^\circ=50^\circ,
a=c\ sinA=10sin50^\circ\approx7.66$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 8 - Applications of Trigonometric Functions - 8.1 Right Triangle Trigonometry; Applications - 8.1 Assess Your Understanding - Page 519: 38
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