Answer
AC=6$\sqrt 3$
Work Step by Step
Triangle ABG is a 30 60 90 with right angle AGB.
BG=.5AB
BG=.5(6)
BG=3
AG=BG$\sqrt 3$
AG=3$\sqrt 3$
AC=2AG
AC=6$\sqrt 3$
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 7 - Section 7.3 - More about Regular Polygons - Exercises - Page 344: 26
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