# Pythagoras property

- Author:
- Mathguru

If in a triangle sum of the squares of two sides is equal to the square of the third side then the triangle must be a right angled triangle.
On the screen, we see a triangle ABC in red color.
Observe how the shape of the triangle ABC changes as we change the lengths of the sides AB (c), AC (b) and BC (a) using their respective slide bars

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