Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 2 - Section 2.4 - An Introduction to Problem Solving - Exercise Set - Page 138: 74

Answer

22.5°, 45°, 112.5°

Work Step by Step

Let measure of first angle = x Measure of second angle = 2x Measure of third angle = 5x x + 2x + 5x = 180 8x = 180 x = 22.5° 2x = 2(22.5) = 45° 5x = 5(22.5) = 112.5°
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