Congruent Triangle TheoremsThe following are eight methods by which to
prove triangles are congruent, without having to find all corresponding parts congruent: SSS, SAS, ASA, AAS, and for right triangles only LL, HA, and HL.
Congruent Triangle Theorems
Congruent Triangle Theorems
Congruent Triangle Theorems
Congruent Triangle Theorems
Examples:
Examples:
Examples:
Examples:
Examples:
Postulate/Theorems and Similar TrianglesUnit 4: Triangles
Three methods may be used to prove triangles similar:
Once triangles have been proven similar, scale factors can be used to solve for the missing values.