Elementary Geometry for College Students (5th Edition)

by Alexander, Daniel C.; Koeberlein, Geralyn M.

Published by Brooks Cole

ISBN 10: 1439047901

ISBN 13: 978-1-43904-790-3

Chapter 4 - Section 4.1 - Properties of a Parallelogram - Exercises - Page 186: 31

Answer

$\angle$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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