Triangle Inequality Theorem

Explore the Triangle Inequality Theorem

The triangle inequality theorem states that

The sum of any two sides of a triangle must be greater than the length of the third side.

Move the a, b and c slider bars to change the lengths of sides of the triangle.

Look at the three conditions
b + c > a
a + c > b
a + b > c

See what happens to the triangle when one of the above conditions is not true.

Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

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