Elementary Geometry for College Students (5th Edition)

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

Chapter 6 - Section 6.3 - Line and Segment Relationships in the Circle - Exercises - Page 308: 29

Answer

We know that when two lines are tangent to the circle and also intersect outside of the circle, their corresponding sides are congruent. Thus, we know that when we add AB and CD, the length will be congruent to DA plus BC. Thus, we find: $AB + CD = DA + BC$.
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.