Right Angled Triangle

Right angled triangle equations for calculating hypotenuse, sides, and angles

Right Angled Triangle

A right triangle - or a right angled triangle - is a triangle in which one of the angles is a right angle - a 90 degree angle.

Formulas:

  • Hypotenuse: c = √(a² + b²)
  • Side a: a = √(c² - b²)
  • Side b: b = √(c² - a²)
  • Angle θ: θ = arctan(b / a)
Calculator

Inputs

Results

Hypotenuse (c)-- m
Angle θ-- °
Side a (from c and b)-- m
Side b (from c and a)-- m