Answer
DC=26 feet
Work Step by Step
DC$^{2}$=AB$^{2}$+(BC-AD)$^{2}$
DC$^{2}$=576+100
DC$^{2}$=676
DC=26
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 4 - Section 4.4 - The Trapezoid - Exercises - Page 213: 42
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