Answer
BE and CF are parallel.
Work Step by Step
Angles 6 and 9 are corresponding angles with relation to lines BE and CF. Since they are congruent, that means that BE and CF are parallel.
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 2 - Review Exercises - Page 131: 10
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