Elementary Geometry for College Students (6th Edition)

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

Chapter 2 - Section 2.4 - The Angles of a Triangle - Exercises - Page 92: 5a



Work Step by Step

This answer is Underdetermined, because the question is asking us to draw a line through the vertex of C in $\triangle$ABC and there are many different ways to satisfy what has been described, which means the auxiliary is Underdetermined.
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