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 P - Preliminary Concepts - Chapter P Review Exercises - Page 29: 35

Answer

Angle ABC is double the size of angle ABD.

Work Step by Step

Once again, we are asked to use intuition, which means we draw conclusions about the problem using our personal experience. We see that angle ABC appears to be about twice as large as angle ABD, so we make this conclusion using our intuition.
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