Answer
CD=4$\sqrt 7$$\approx$10.6
Work Step by Step
(.5CD)$^2$=CO$^2$-OE$^2$
(.5CD)$^2$=64-36=28
CD=4$\sqrt 7$$\approx$10.6
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 6 - Section 6.3 - Line and Segment Relationships in the Circle - Exercises - Page 306: 2
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