Answer
d= 10
Work Step by Step
We replace $x_{1}$and $y_{1}$ by the coordinates of C and $x_{2}$ and $y_{2}$by the coordinates of D.
$d=\sqrt{ (x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}=\sqrt{ (0-(-6))^{2}+(9-1)^{2}}=\sqrt{36+64}=\sqrt{100} = 10$
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 10 - Test - Page 495: 3
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