# The Triangle Inequality Theorem

- Author:
- Patrick Janike

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Which of the following sets of lengths can form a triangle?

## Make a conjecture...

What must be true about three side lengths for them to be able to form a triangle?

- Author:
- Patrick Janike

Which of the following sets of lengths can form a triangle?

What must be true about three side lengths for them to be able to form a triangle?