Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 5 - Review Exercises - Page 262: 22



Work Step by Step

$\frac{AD+DB}{DB}$=$\frac{AC}{DE}$ $\frac{12}{8}$=$\frac{AC}{3}$ 8AC=36 AC=4.5
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