Answer
A$\approx$39.6
Work Step by Step
h=.5AB
h=3
AD=BC+2(3$\sqrt 3)$
AD=8+6$\sqrt 3$
A=.5(3)(16+6$\sqrt 3$)
A=24+9$\sqrt 3$
A$\approx$39.6
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 8 - Review Exercises - Page 385: 7b
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