sss Postulate

"SSS" stands for "side-side-side," while a "postulate" is something we mathematicians accept as true is true without having to prove it. Let''s discover more about the SSS postulate:

The SSS postulate, explained

The SSS postulate states that:

If one triangle''s three sides are congruent to another triangle''s three sides, then these two triangles are congruent.

Remember, we can use the term "congruence" interchangeably with "equality."

Visualizing the SSS postulate

Let''s take a look at what the SSS postulate actually looks like:

We can see that in these two triangles, the sides of one triangle are congruent to the sides of the other. We can put this in a formula:

Side AB ≅ side DE

side BC ≅ side EF

, and

side AC ≅ DF.

The symbol "≅" represents congruence.

Therefore,

ΔABC ≅ ΔDEF.

Topics related to the sss Postulate

Triangles

sss Similarity

SAS Postulate

Flashcards covering the sss Postulate

Advanced Geometry Flashcards

Common Core: High School - Geometry Flashcards

Practice tests covering the sss Postulate

Common Core: High School - Geometry Diagnostic Tests

Advanced Geometry Diagnostic Tests

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