CALCULATOR
Area of a Right Triangle Calculator
Find right-triangle area from perpendicular legs. Example: Leg a: 2 m, Leg b: 2 m gives 2 m². Legs meet at 90 degrees; neither is hypotenuse. Flat Euclidean shape; stated measurements in displayed units. No waste, thickness, structural suitability or curved-earth claim. Floating point rounding is display only.
Legs meet at 90 degrees; neither is hypotenuse. Flat Euclidean shape; stated measurements in displayed units. No waste, thickness, structural suitability or curved-earth claim. Floating point rounding is display only. Derivation: Triangle area half its leg-bounded rectangle.
Accepted inputs: Leg a: 0.001 to 1,000 m; Leg b: 0.001 to 1,000 m.
How the calculation works
A = leg a × leg b /2
Worked example
With leg a 2 m, leg b 2 m, right-triangle area from perpendicular legs is 2 m².
Assumptions and limits
Legs meet at 90 degrees; neither is hypotenuse. Flat Euclidean shape; stated measurements in displayed units. No waste, thickness, structural suitability or curved-earth claim. Floating point rounding is display only. Derivation: Triangle area half its leg-bounded rectangle.