Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 2 - Section 2.4 - The Angles of a Triangle - Exercises - Page 105: 5a

Answer

Underdetermined

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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