Triangle Calculator
Calculate the area and properties of a triangle given its base and height.
GeometryFree · no sign-upStep-by-step answers
How to use this calculator
- 1Enter your values or expression in the fields above.
- 2Press Enter or click the calculate button.
- 3Read the result, then follow the numbered step-by-step working to understand each stage.
Worked Examples
Frequently Asked Questions
How is triangle area calculated?
Area = ½ × base × height.
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Learn the concepts
Understand the theory behind this calculator.
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An angle is formed by two rays sharing a common endpoint. Angles are measured in degrees or radians.
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Area measures the amount of space inside a two-dimensional shape.