Pythagoras theorem visualised

Change the two shorter sides.

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Questions students ask

What does Pythagoras theorem say?

In a right-angled triangle, the square on the hypotenuse equals the sum of the squares on the other two sides.

What is a Pythagorean triple?

Three whole numbers that fit a² + b² = c², such as 3, 4, 5 or 5, 12, 13.

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