Similar Triangles

Hannah Harris

What Are Similar Triangles ?

Similar Triangles are triangles with congruent angles and proportional sides.

What Is Triangle Similarity Criterion ?

Triangle Similarity Criterion is known to be used when proving whether or not two of more triangles are similar. They are SSS (side side side), SAS (side angle side), and AA (angle angle).

How Do You Use Triangle Similarity Criterion To Prove Triangles Similar ?

Here are some examples :

Using Similarity Criterion To Prove Triangles Similar

SSS - Used to prove triangles similar when all sides are proportional

SAS - Used to prove triangles similar when 2 sets of sides are similar and 2 angles are congruent in between

AA - Used to prove triangles similar when 2 sets or all angles are congruent

Similar triangle example problems | Similarity | Geometry | Khan Academy

Pythagorean Theorem

Pythagorean Theorem is used to find one missing side length of a triangle instead of using proportions.
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