Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 6 - Section 6.3 - Line and Segment Relationships in the Circle - Exercises - Page 307: 15

Answer

EC=6 DE=12

Work Step by Step

DE=2EC EC(2EC)=AE(EB) 2EC$^2$=72 EC$^2$=36 EC=6 DE=2(6)=12
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