Trigonometry 7th Edition

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

Chapter 1 - Test - Page 51: 5



Work Step by Step

One complete revolution is equivalent to $360^{\circ}$ Degrees moved in 12 hours = $360^{\circ}$ Degrees moved in 1 hour = $\frac{360^{\circ}}{12}$ = $30^{\circ}$ Degrees moved in 3 hours = $30^{\circ} \times 3$ = $90^{\circ}$
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