# What Makes a Triangle a Triangle?

- Author:
- Natalie Norris

## Can we use any three side lengths to make a triangle?

Try rearranging the lengths below to create a triangle.
Use the green dots to rotate the segments and the blue dots to move the segments.
1. Does it work? Why or why not? (Write your answer in the discussion board on Canvas)

## What segment lengths DO make a triangle?

Use the green dots to change the length and position of sides a and b.
2. Write down TWO side length combinations for sides a and b that work and ONE that does not work to make triangle ABC. Do you notice anything? (Write your answer in the discussion board on Canvas)

## At what point does the triangle stop being a triangle?

Use the green dot to change the dimensions of the triangle.
3. Where is it NOT a triangle?
At what point does it stop being a triangle? (Write your answer in the discussion board on Canvas)