Answer
A=312 ft$^2$
Work Step by Step
A=(20)(30)-(12)(24)
A=600-288
A=312 ft$^2$
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 8 - Review Exercises - Page 396: 26a
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