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Right Triangle Explorer

Drag the legs of a right triangle and watch the Pythagorean theorem play out visually — squares grow on each side as a² + b² = c².

Drag the blue handle (leg a) or green handle (leg b) — watch the squares grow

square on a square on b square on c

Presets

Leg a

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Leg b

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Hypotenuse c

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Area a²

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Area b²

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Area c²

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Pythagorean theorem

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Optional: angle & trig ratios at vertex A

∠A (degrees)

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sin A = b/c

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cos A = a/c

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tan A = b/a

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