Similarity Shortcuts - Concept

Concept Concept (1)

There are four triangle congruence shortcuts: SSS, SAS, ASA, and AAS. We have triangle similarity if (1) two pairs of angles are congruent (AA) (2) two pairs of sides are proportional and the included angles are congruent (SAS), or (3) if three pairs of sides are proportional (SSS). Notice that AAA, AAS, and ASA are not listed -- to include them would be redundant since they all have two congruent angles.

Sample Sample Problems (3)

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Similarity Shortcuts - Problem 1
Problem 1
How to find a missing side of a triangle using the AA similarity shortcut.
Similarity Shortcuts - Problem 2
Problem 2
How to find a missing side of a triangle using the SAS similarity shortcut.
Similarity Shortcuts - Problem 3
Problem 3
How to determine if two triangles are similar using a shortcut.