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📐 Right Triangle Calculator

Enter any two values (at least one must be a side) and the rest are solved with the Pythagorean theorem and basic trigonometry. Sides: a (opposite A), b (opposite B), c (hypotenuse).

Known Values

°
°
Enter any two values (one must be a side).

Results

Side a
Side b
Hypotenuse c
Angle A
Angle B
Area
Perimeter
Altitude to Hypotenuse

Diagram

a b c A B

Step-by-Step