Answer
Vertical height = 40 feet
Work Step by Step
$\frac{height of building}{horizontal shadow length of building} = \frac{height of post}{horizontal shadow length of post}$
x/30 = 4/3
x = 4*(30/3) = 4*10 = 40ft
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.3 - Modeling with Linear Equations - 1.3 Exercises - Page 99: 72
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