Right Triangle Calculator
Calculate right triangle — triangle properties and measurements.
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Area
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Perimeter
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Semi-perimeter
Recent Calculations
What Is Right Triangle?
Right Triangle calculates triangle measurements and properties.
Formula
Area = ½ × base × heightFrequently Asked Questions
What formulas are used?
Area = ½bh (base × height), Heron's formula for three sides, or ½ab sin(C) for two sides and angle.