AAA (angle-angle-angle): if two triangles have their three pairs of angles equal, they are similar. AA is sufficient. SSS (side-side-side ratio): three pairs of corresponding sides in the same ratio. SAS (side-angle-side ratio): two pairs of sides proportional and included angles equal.
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Class 10 · Mathematics (Standard) · Unit 6: Triangles
Similarity Criteria
Lesson 3 of 6