Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 1 - Section 1.2 - Informal Geometry and Measurement - Exercises - Page 20: 41

Answer

m$\angle$ ABC = 71$^{\circ}$

Work Step by Step

Step 1: m$\angle$ 1 + m$\angle$ 2 = m$\angle$ ABC. Step 2: Substitute 32 for m$\angle$ 1 and 39 for m$\angle$ 2. 32 + 39 = m$\angle$ ABC Step 3: Simplify 71$^{\circ}$ = m$\angle$ ABC
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