Elementary Geometry for College Students (6th Edition)

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

Chapter 4 - Section 4.4 - The Trapezoid - Exercises - Page 201: 17


1) $ \angle $EAB $\cong$ $\angle$ EBA 2) $\triangle$ ABCis isosceles

Work Step by Step

It is already given that 1) ABCD is an isosceles trapezoid Furthermore 2) $\angle$ EAB $\cong$ $\angle $EBA as from trapezoid theorem the base angle of isosceles trapezoid are $\cong$ Therefore; 3) $\triangle$ ABC is isosceles $\triangle$ as it have the congruent base angles
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