4.4 Triangle Congruence: SSS and SAS
Definitions:
Triangle Rigidity - if the side lengths of a triangle are given, the triangle can have only one shape
Postulates:
Side-Side-Side (SSS) Congruence Postulate - If three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent
Side-Angle-Side (SAS) Congruence Postulate - If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent
Examples:
Definitions:
Triangle Rigidity - if the side lengths of a triangle are given, the triangle can have only one shape
Postulates:
Side-Side-Side (SSS) Congruence Postulate - If three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent
Side-Angle-Side (SAS) Congruence Postulate - If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent
Examples: