OpenStudy (anonymous):

Help!!!!!!!!!!!!!!!! What is the measure of CD below?

5 years ago
OpenStudy (anonymous):

|dw:1351177090370:dw|

5 years ago
OpenStudy (anonymous):

You can find the relevant theorems here: http://www.mathwarehouse.com/geometry/circle/tangent-secant-side-length.php

5 years ago
OpenStudy (anonymous):

@CliffSedge thanks really helped

5 years ago
OpenStudy (anonymous):

You're welcome. That website is really great. I use it all the time.

5 years ago
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