Elementary Geometry for College Students (6th Edition)

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: 25a



Work Step by Step

To obtain the slant height , which is the height of the side, solve for the right triangle that has legs of lengths 3 (half of the base length) and 4. $3^2+4^2=s^2$ slant height $=5$ ft Multiply the slant height and half the base length to get the area of the side. $A=3(5) = 15$ft$^2$ Multiply this by four to get the lateral area: $15(4)=60$ft$^2$
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