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OpenStudy (anonymous):
Look at the figure. What is the length, in units, of segment CD?
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OpenStudy (anonymous):
OpenStudy (anonymous):
im going to go with 9 :)
OpenStudy (accessdenied):
|dw:1338662879672:dw| Just redrawing the diagram here...
OpenStudy (accessdenied):
Well, the first thing I notice is these parallel lines. If we use alternate interior angles, we see:
OpenStudy (accessdenied):
|dw:1338663014176:dw|
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