Answer
$a\approx22.69, c\approx23.04, A=80^\circ $
Work Step by Step
Given $b=4, B=10^\circ$, we have $c=\frac{b}{sinB}=\frac{4}{sin10^\circ}\approx23.04, A=90^\circ-10^\circ=80^\circ, a=b\ tanA=4tan80^\circ\approx22.69$
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: 30
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