Answer
AE=20
EF=15
AF=25
Work Step by Step
AE$^2$=AB$^2$+BE$^2$
AE$^2$=256+144
AE=20
EF$^2$=EC$^2$+CF$^2$
EF$^2$=144+81
EF=15
AF$^2$=FD$^2$+AD$^2$
AF$^2$=49+576
AF=25
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 5 - Review Exercises - Page 263: 33
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