Angle bisector
A ray that divides an angle into two congruent angles.
An angle bisector is a line or ray that cuts an angle into two equal parts. Specifically, an angle bisector is a line or ray that starts from the vertex of an angle and splits the angle into two equal angles.
For example, if we have an angle that measures 60 degrees, the angle bisector would divide this angle into two angles that each measure 30 degrees.
Angle bisectors are commonly used in geometry to solve problems involving triangles. For instance, if we know the lengths of two sides of a triangle and the measure of the angle between them, we can use an angle bisector to find the length of the third side.
It’s important to note that not all angles have a bisector. For example, a right angle (an angle that measures 90 degrees) does not have an angle bisector, because any line or ray that starts from the vertex of a right angle will be perpendicular to the other two sides of the angle.
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