Elementary Geometry for College Students (5th Edition)

by Alexander, Daniel C.; Koeberlein, Geralyn M.

Published by Brooks Cole

ISBN 10: 1439047901

ISBN 13: 978-1-43904-790-3

Chapter 5 - Section 5.6 - Segments Divided Proportionally - Exercises - Page 266: 10

Answer

EC=12.5

Work Step by Step

$\frac{AB}{AC}$=$\frac{DB}{EC}$ $\frac{16}{20}$=$\frac{10}{EC}$ 16EC=200 EC=12.5

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