Triangle Area Calculator
Calculate triangle area using base×height, two sides + angle, or Heron's formula
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About Triangle Area Calculator
There are multiple ways to calculate the area of a triangle. The most basic formula is 'base × height ÷ 2,' but when the height is unknown, you can use '½ × a × b × sin(C)' with two sides and the included angle.
If all three sides are known, Heron's formula '√(s(s-a)(s-b)(s-c))' (where s is the semi-perimeter) provides an exact area. This tool supports all three methods with tab-based switching, showing results and formulas in real-time as you type.
Perfect for math education, practical area calculations, and construction or engineering work involving triangles.
How to use Triangle Area Calculator
- Select a calculation method: Base×Height, 2 Sides+Angle, or 3 Sides (Heron)
- Enter the required values for the selected method
- The area and formula used are displayed in real-time
Benefits of Triangle Area Calculator
- Supports three calculation methods for any scenario
- Displays formulas for educational purposes
- Real-time calculation with instant results
- Browser-only processing ensures privacy
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