Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 5 - Test - Page 275: 4b



Work Step by Step

Given that the two triangles are similar, then their corresponding sides are proportional. $\frac {RT}{WU} =\frac {TS}{WV}$ Substitute in known values (and $x$ for the unknown value... $\frac {4}{6}=\frac {8}{x}$ Cross Multiply... $4x=48$ Divide both sides by 4... $x=12$ or $WV=12$
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