Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 4 - Section 4.1 - Properties of a Parallelogram - Exercises - Page 178: 35


$\angle$P is a right angle.

Work Step by Step

$\angle$H+$\angle$L=180 Therefore, $\frac{1}{2}$$\angle$H+$\frac{1}{2}$$\angle$L=90 If two angles in a triangle are complimentary, then the third angle must be a right angle.
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