Answer
$0.5741$
Work Step by Step
Using the trigonometric ratios, we have
$$
\tan A=\frac{length \ of \ side\ opposite \ angle\ A}{length \ of \ side\ adjacent\ angle\ A}\\
=\frac{31}{54}=0.5741
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 13 - Section 13.1 - Trigonometric Ratios - Exercise - Page 454: 27
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