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: 18


1. Since DC is the midpoint of the isosceles triangle, it is parallel to the base, which is AB. 2. Since these two sides are parallel and there are 4 sides total, ABCD is a trapezoid. 3. Since DC is the midpoint of the isosceles triangle AEB, it follows that AD is congruent to CB. 4. Since the opposite sides of the trapezoid are congruent, the trapezoid is an isosceles trapezoid.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.