Answer
AE$\approx$6.7
Work Step by Step
$\frac{AE}{AC}$=$\frac{AD}{AD+AE}$
$\frac{AE}{18}$=$\frac{4}{4+AE}$
AE$^2$+4AE-72=0
AE=$\frac{-4+\sqrt {16+288}}{2}$
AE=-2+.5$\sqrt {304}$
AE$\approx$6.7
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 5 - Section 5.2 - Similar Polygons - Exercises - Page 236: 24
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
