## Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole

# Chapter 9 - Section 9.2 - Pyramids, Area, and Volume - Exercises - Page 407: 22b

172.5

#### Work Step by Step

We add the area of the base to the lateral area found in part a: $SA = 111 + (1/2)(4.1)(30) = 172.5$

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