Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 2 - Section 2.6 - Problem Solving in Geometry - Exercise Set - Page 178: 43

Answer

90$^\circ$

Work Step by Step

Supplementary angles have a sum of 180$^\circ$. x+90=180 x=180-90 x=90$^\circ$
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