Answer
The height, h, is 8.
Work Step by Step
EX=DW
WX-ZY=EX+DW
WX-ZY=2EX
2EX=20-8
2EX=12
EX=6
EX$^{2}$+EY$^{2}$=YX$^{2}$
6$^{2}$+EY$^{2}$=10$^{2}$
EY$^{2}$=100-36
EY=8
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 4 - Section 4.4 - The Trapezoid - Exercises - Page 209: 19
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