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Re: Finding angle in triangle
Posted:
Sep 13, 2006 5:40 PM


Apply Cosine Rule: Cos A = (b^2 + c^2  a^2) / 2bc
Chips wrote: > I used to have this formula I think, but can't find it. > > If I know the lengths of the sides of a triangle (a, b, c) that does not > necessarily have a right angle , is there a way to determine the angle A? > > Thanks, > > GC



