definition of angle bisector
ray that divides an angle into 2 congruent angles
An angle bisector is a geometric object that divides an angle into two equal parts. More specifically, it is a straight line or line segment that passes through the vertex of an angle and divides it into two angles of equal measure. In other words, if a ray or a line segment bisects an angle, it divides the angle into two parts of equal measure. The word bisector in geometry means to divide into two equal parts, and an angle bisector precisely does that by dividing an angle into two congruent angles.
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