Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Unit 1A Review - Page 26: 10

Answer

$499\ in^2$

Work Step by Step

Find the area of each of the 3 rectangles that make up the figure, then sum to find the area of the figure. The top rectangle has sides that are 11 in an 9 in. $11\times9=99$ The middle rectangle has sides that are 22 in (11+11) and 8 in. $22\times8=176$ Find the height of the bottom rectangle by subtracting the heights of the two upper rectangles from the total height. $24-(9+8)=24-17=7$ The bottom rectangle has sides that are and 32 in and 7 in. $32\times7=224$ $99+176+224=499$
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