#### Answer

70$^{\circ}$

#### Work Step by Step

We first find the measure of the arc corresponding to the angle:
$ = 75^{\circ} \times 2 = 150^{\circ}$
Thus:
$CD= 150 - 80 = 70^{\circ}$

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Published by
Brooks Cole

ISBN 10:
9781285195698

ISBN 13:
978-1-28519-569-8

70$^{\circ}$

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