 Similarity system of triangles

The similarity of triangles is a concept in geometry that refers to the relationship between two triangles that have the same shape but possibly different sizes. Two triangles are said to be similar if their corresponding angles are equal and their corresponding sides are in proportion. Here are the key points regarding the similarity of triangles: ### Criteria for Triangle Similarity 1. **Angle-Angle (AA) Criterion**: If two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.