GeoGebra Classroom

# Triangle Inequality

## Instructions

1. Slide Red slider to change length of Red side of the triangle. 2. Slide Green slider to change length of Green side of the triangle. 3. Slide Blue slider to change length of Blue side of the triangle. 4. Observe the calculation in respective color equations for proof.

## Answer the following equations:

The Triangle Inequality Theorem states the sum of the lengths of any two sides of a triangle is ________________ the length of the third side.

Select all that apply
• A
• B
• C
• D
Check my answer (3)

The Triangle Inequality Theorem deals with _______ of a triangle

Select all that apply
• A
• B
Check my answer (3)

Does a triangle with these side lengths exist?

Select all that apply
• A
• B
Check my answer (3)

Does a triangle with these side lengths exist? 20, 10, 9

Select all that apply
• A
• B
Check my answer (3)

The longest side of a triangle would be located where on a triangle?

Select all that apply
• A
• B
• C
• D
Check my answer (3)