Proving Triangles Similar (1) - ASA/AAS Criteria Demonstration

This GeoGebra example demonstrates the proof of triangle similarity criteria (ASA or AAS) through dynamic construction. The core mathematical concepts include properties of similar triangles, corresponding angles being equal, and corresponding sides being proportional. Construction highlights: Using the Rotate command to construct corresponding angles, the Angle command to mark angles, the Polygon command to draw two triangles, and Line/Intersect commands to create auxiliary lines showing corresponding relationships. Suitable for middle school mathematics teachers and students learning triangle similarity criteria, can be used for classroom demonstration or student self-exploration of similar triangle properties and determination conditions.