Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 3 - Review Exercises - Page 173: 13

Answer

1. It is given that AB and CD are congruent. 2. It is given that angle BAD is congruent to angle CDA. 3. By the identity theorem, AD is congruent to itself. 4. Thus, by SAS, triangle DAC and BDA are congruent. 5. Because corresponding parts of corresponding triangles are congruent, CAD is congruent to BDA. 6. Thus, by definition, triangle AED is isosceles.
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.