Right triangle calculator: Pythagoras and SOHCAHTOA

Give two sides, or one side and an angle, and the whole right-angled triangle is worked out with Pythagoras and SOHCAHTOA.

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Questions students ask

What is Pythagoras' theorem?

In a right-angled triangle the square on the hypotenuse equals the sum of the squares on the other two sides: c² = a² + b².

What does SOHCAHTOA stand for?

Sin = Opposite/Hypotenuse, Cos = Adjacent/Hypotenuse, Tan = Opposite/Adjacent.

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