Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 7 - Similarity - 7-1 Ratios and Proportions - Practice and Problem-Solving Exercises - Page 437: 44


$\frac{9}{4}$=$\frac{L}{52}$; 117 mm

Work Step by Step

You are given the proportion of length to width, so: $\frac{9}{4}$=$\frac{L}{W}$ You are also given the width, so substitute in for w: $\frac{9}{4}$=$\frac{L}{52}$ Cross multiply to solve for the length: 4L=9(52) 4L=468 L=117 mm
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