Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.1 Points, Lines, Planes, and Angles - Exercise Set 10.1 - Page 616: 3



Work Step by Step

There are 12 hours around a clock. One rotation around the clock makes 360 degrees. This means that in each hour, a clock's hand moves: $=\dfrac{360^o}{12} \\=30^o$ There are 3 hours from 1 o'clock to 4 o'clock. This means that from 1 o'clock to 4 o'clock, the clock's hour hand moves: $=3(30^o) \\=90^o$
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