AlgebraLab

Side-Angle-Side Similarity Theorem

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Pronunciation: SIDE AN•gle SIDE sim•i•LAR•i•ty THE•o•rem

Definition

If an angle of one triangle is congruent to an angle of a second triangle, and the two sides that form the angle in one triangle are proportional to the two sides that form the angle in the second triangle, then the triangles are similar.

Example