Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 2 - Solving Equations - 2-8 Proportions and Similar Figures - Practice and Problem-Solving Exercises - Page 134: 12


48 yd

Work Step by Step

Because the triangles are similar, we can create the following proportion: $\frac{20}{50}=\frac{BC}{120}$ cross multiply $50(BC)=20\times120$ multiply $50(BC)=2400$ divide both sides by 50 $BC=48$
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