OhMyCalc

Right Triangle Calculator

Calculate all sides, angles, area, and perimeter of a right triangle. Enter any two of three sides (two legs or one leg and the hypotenuse).

Enter any two of three sides

How to Use the Right Triangle Calculator

  1. Enter the required dimensions (length, width, radius, height, etc.).
  2. The area, volume, or other geometric value is computed instantly.
  3. Review the result along with the formula used.
  4. Adjust dimensions to compare different scenarios.

Casos de Uso

Fórmula

Pythagorean theorem: c = √(a² + b²). Area: S = ½ × a × b. Angles via atan.

Perguntas Frequentes

How do you find the hypotenuse?
Use the Pythagorean theorem: c = √(a² + b²), where a and b are the legs.
How do you find a missing leg?
If you know the hypotenuse c and one leg a, the other leg is b = √(c² − a²).
How are the angles calculated?
The angle opposite leg a is α = atan(a/b) in degrees. The other acute angle is β = 90° − α.
Why must the hypotenuse be the longest side?
In a right triangle, the hypotenuse is opposite the 90° angle, making it always the longest side.