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Keywords: Congruent triangles.svg The shape and size of a triangle can be uniquely determined up to congruence by specifying the lengths of two sides and the angle between them SAS or two angles and the side between them ASA Specifying two angles and an adjacent side AAS also works but specifying two sides and an adjacent angle SSA usually gives two different possible solutions This is called the ambiguous case Own 2006-11-27 Ilmari Karonen Other fields + Congruent triangles |