Answer
$b \approx10.72$, $c \approx11.83$, $B =65^\circ$.
Work Step by Step
Given $a=5, A=25^\circ$, we have $b=a\ cotA=5cot25^\circ\approx10.72$, $c=a\ cscA=5csc25^\circ\approx11.83$, $B=90^\circ-A=65^\circ$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 7 - Applications of Trigonometric Functions - Section 7.1 Right Triangle Trigonometry ; Applications - 7.1 Assess Your Understanding - Page 540: 35
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