Posted by Mark on Monday, July 15, 2013 at 4:59pm.
In triangle ABC, D is the midpoint of BC. E is the foot of the perpendicular from C to AD. If CD=7√,DE=3√, what is the measure (in degrees) of ∠BED?

Math  srbs, Tuesday, July 16, 2013 at 10:16am
30
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