Angle Bisector Construction by Jenny Novak

①This example demonstrates how to construct the angle bisector of a given angle using the Ray tool in GeoGebra, visually showing the line that divides the angle into two equal parts. ②The core mathematical concept is the definition and property of an angle bisector, which splits an angle into two congruent angles, and the geometric construction logic behind it. ③Construction details: Based on the summary, the Ray command is used, along with objects such as text1 (likely a label or annotation), points A, B, C, line a, and point b. The ray is drawn from the vertex into the interior of the angle to determine the bisector direction, possibly with auxiliary points or text to complete the construction. ④This is suitable for middle school geometry lessons or introductory geometric construction, helping students understand the principles of compass-and-straightedge construction and allowing dynamic adjustment of the angle to observe that the bisector always divides it equally.