Check - Is it an Angle Bisector?

This GeoGebra example demonstrates how to verify whether a given ray is an angle bisector of an angle in a dynamic geometry environment. The core mathematical concept is the definition and property of an angle bisector, which divides an angle into two equal smaller angles. The construction uses the Ray command, involving objects A, B, f, C, and g, where rays f and g likely represent the two sides of the angle, and ray C or related constructions are used to test the bisector condition. By dragging points on the sides or vertex, users can dynamically observe angle changes and confirm the bisector criterion. This is suitable for middle school geometry lessons to intuitively understand angle bisectors, their properties, and geometric construction methods, as well as for high school coordinate geometry explorations of lines and angles.