In geometry, similar triangles have proportional corresponding sides and congruent corresponding angles. The SSS Similarity Theorem states that if the sides of two triangles are proportional, then the triangles are similar. This theorem is used to prove the Angle-Angle Similarity Theorem (AA) and the Side-Side-Side Congruence Theorem (SSS). It has applications in architecture, engineering, art, and photography, where it’s used for scaling, geometric constructions, and composition.
