Triangle Area Calculator
Compute the area of a triangle (base×height, or three sides via Heron).
Input Data
Mode
B
H
A
C
Angle
Results
Area of the triangle.
12
Explanatory note about the result.
A = ½bh = ½·6·4 = 12。
At a glance:A = (1/2)·b·h; Heron: s=(a+b+c)/2, A=√(s(s−a)(s−b)(s−c)). Complements pythagorean and trapezoid-area.
Formula
A = ½·b·h.
A = √(s(s−a)(s−b)(s−c)).
How to Use
- Pick a mode and enter sides/height.
- The tool returns the area.
Case Studies
b=6, h=4
A = 12.
FAQ
When use Heron?
When you know all three sides but not the height.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.