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Proving Triangles are Similar





 
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More Lessons for Grade 8 Math

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Videos, worksheets, stories and songs to help Grade 8 students learn how to determine if two triangles are similar.

Similarity Shortcut Triangle Similarity
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.
Investigate Properties of Similar Triangles Part 1
This lesson shows how to determine when triangles are congruent or similar



Investigate Properties of Similar Triangles Part 2
This lesson shows how to determine when triangles are congruent or similar.
Congruent and Similar Triangles
Working with similar triangles, determining similar triangles


 

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