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An (interior) '''angle bisector''' (also called an '''internal angle bisector''') is a line or ray that intersects an angle and evenly divides it into two [[congruent]] angles.
An (interior) '''angle bisector''' (also called an '''internal angle bisector''') is a line or ray that intersects an angle and evenly divides it into two [[congruent]] angles.
[[category:Plane Geometry]]
[[Category:Plane Geometry]]
The angle bisector theorem concerns the relative lengths of the two segments that a triangle's side is divided into by a line that bisects the opposite angle. It equates the relative lengths of the segments to the relative lengths of the other two sides of the triangle.
The angle bisector theorem concerns the relative lengths of the two segments that a triangle's side is divided into by a line that bisects the opposite angle. It equates the relative lengths of the segments to the relative lengths of the other two sides of the triangle.