Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises: 29

Answer

130$^{\circ}$

Work Step by Step

1. 8:20. The minute hand is on 4. The hour hand is 1/3 (20/60) past 8. 2. 360$^{\circ}$/12=30$^{\circ}$ degrees in the hour 3. The distance between hands. $\frac{1}{3} + 4 = 4 \frac{1}{3} $ hours 5. $\frac{13}{3}$ $\times$ 30$^{\circ}$ = 130$^{\circ}$
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