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: 31


500 ft

Work Step by Step

Write a proportion. Height is to height as length is to length. $\frac{x}{25}=\frac{40}{2}$ $\longrightarrow$cross multiply to solve for x $2x=40\times25$ $\longrightarrow$multiply $2x=1000$ $\longrightarrow$multiplication property of equality $2x\div2=1000\div2$ $\longrightarrow$divide $x=500$
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