Answer
See the picture below:
Work Step by Step
A, B and C are on the same line (collinear).
A, B, C and D are on the same plane (coplanar).
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 1 - Review Exercises - Page 65: 15
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