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Consider the isosceles triangle with AB = AC. Suppose the angle bisector of B intersects the side AC at D and that BC = BD + AD. Determine the angle A.
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Wanna use trig, or regular plane geometry?
the easiest way to solve this
I was looking at this last night. I'm trying to find my notes on it.
ok, i'm trying to solve this, but this one is really hard...
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Yeah, I'm trying combinations of law of cosines and law of sines.
but nothing yet
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