Answer
72 ft$^2$
Work Step by Step
LA=6(3)+6(4)+6(5)
LA=18+24+30
LA=72
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 9 - Section 9.1 - Prisms, Area, and Volume - Exercises - Page 407: 17a
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