Math Blog Post- The Triangle Inequality Theorem

The Triangle Inequality Theorem goes as follows:

“The sum of any two side lengths of a triangle is greater than third side length.”

This means that A and B must be greater than C. If it isn’t greater, then the triangle’s sides don’t match.

For example: A is equal to 4, B is equal to 3, and C is equal to 7.

This WOULD NOT be a complete triangle because 4+3=7. 

Let’s try another one: A is equal to 34, B is equal to 21, and C is equal to 50.

This WOULD be a complete triangle because 34+21=55, and 55 is more than 50.

Got it? Good!



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