Answer
BA=3$\sqrt 2$
Work Step by Step
$\frac{BD}{BA}$=$\frac{BA}{BC}$
$\frac{3}{BA}$=$\frac{BA}{6}$
BA$^2$=18
BA=3$\sqrt 2$
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 5 - Review Exercises - Page 274: 30c
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