Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set: 24

Answer

$18^{\circ}$ $48'$

Work Step by Step

To convert $18.8^{\circ}$ to degrees and minutes, let's break it as- $18.8^{\circ}$ = $18^{\circ}$ + $0.8^{\circ}$ Now on multiplying 0.8 by 60, we have the number of minutes equivalent to 0.8° Therefore $18.8^{\circ}$ = $18^{\circ}$ + $0.8(60')$ $18.8^{\circ}$ = $18^{\circ}$ + $48'$ $18.8^{\circ}$ = $18^{\circ}$ $48'$
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