Angle-Side-Angle Triangle Congruence Practice (GeoGebra Interactive)

This example demonstrates how to determine triangle congruence using the Angle-Side-Angle (ASA) criterion, and provides practice problems. The core mathematical concept is the ASA congruence theorem: if two angles and the included side of one triangle are equal to the corresponding two angles and included side of another triangle, then the triangles are congruent. Construction notes: The GeoGebra file includes an image object (pic1) likely used as a background or reference for the problem figure; the only command shown is inserting the image, but in practice one would use polygon tools to construct triangles and angle/length measurement tools to verify congruence conditions. Suitable for middle school geometry lessons on triangle congruence, for classroom demonstration or student self-study.