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Division of the Opposite Side by an Angle Bisector


	The internal bisector of an angle of a triangle divides the opposite side in the ratio of the sides containing the angle bisected. In symbols, if BAD = CAD, then BD/DC = AB/AC. Drag the orange point to change the figure.


	Contributed by: Jay Warendorff

Angle Bisector (Wolfram MathWorld)

"Division of the Opposite Side by an Angle Bisector" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/DivisionOfTheOppositeSideByAnAngleBisector/

Contributed by: Jay Warendorff

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