Answer
172.5
Work Step by Step
We add the area of the base to the lateral area found in part a:
$SA = 111 + (1/2)(4.1)(30) = 172.5$
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 9 - Section 9.2 - Pyramids, Area, and Volume - Exercises - Page 407: 22b
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