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JC Mathematics · Geometry · 5 min

Pythagoras' Theorem:
Squares on the sides

Narrated explanationReady

In any right-angled triangle, the square on the longest side equals the sum of the squares on the other two sides: a² + b² = c².

a² + b² = c², where c is always the hypotenuse.

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Hypotenuse

The longest side, always opposite the right angle.

Quick check

1. A right triangle has sides 6 cm and 8 cm. How long is the hypotenuse?

2. Where is the hypotenuse?