Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - 1-4 Measuring Angles - Practice and Problem-Solving Exercises - Page 32: 34



Work Step by Step

A clock has 12 sections. A clock is a circle, and circles have 360 degrees, so each section is 360/12=30 degrees. At 7:00, the minute hand is at 12 and the hour hand is at 7, so there are exactly 5 sections. Multiply the degrees per section (30) by the number of sections (5) to obtain $30*5=150$.
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