 # Triangle Inequality Calculator

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<--- Side 2
<--- Side 3

### How does the Triangle Inequality Calculator work?

Free Triangle Inequality Calculator - This calculator displays 2 scenarios
1) Enter 3 sides of a triangle, and it will determine if the side lengths satisfy the properties of the triangle inequality and form a triangle
2) Enter 2 sides of a triangle, and this will determine an acceptable range for the length of the 3rd side of a triangle so that the 3rd side respects the Triangle Inequality.
This calculator has 3 inputs.

### What 2 formulas are used for the Triangle Inequality Calculator?

Sum up two sides of the triangle. They must be greater than the 3rd side
The sum of any two sides of a triangle is greater than or equal to the third side

For more math formulas, check out our Formula Dossier

### What 3 concepts are covered in the Triangle Inequality Calculator?

inequality
a relation which makes a non-equal comparison between two numbers or other mathematical expressions.
>, <, ≤, ≥
triangle
a flat geometric figure that has three sides and three angles
triangle inequality
the sum of any two sides of a triangle is greater than or equal to the third side