Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 2 - Section 2.4 - The Angles of a Triangle - Exercises - Page 106: 27



Work Step by Step

$m∠1+m∠2=90^{\circ}$ Because complementary angles of a right triangle $x/2+x/3=90^{\circ}$ $5x/6=90^{\circ}$ $x=108^{\circ}$
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