Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 6 - Section 6.5 - Congruent and Similar Triangles - Exercise Set - Page 453: 29


520 ft

Work Step by Step

Express the given information as a ratio. $\frac{x}{80}=\frac{13}{2}$$\Rightarrow$use cross products to solve for x $2x=13\times80$$\Rightarrow$multiply $2x=1040$$\Rightarrow$multiplication property of equality $2x\div2=1040\div2$$\Rightarrow$divide $x=520$
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