Area of a triangle
Calculates the area of a triangle given two sides and an angle
This function calculates the area of a triangle. For calculation, enter the length of two sides and their angles in degrees or radian. Then click the Calculate button.
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Enter the sides a and b and the angle γ
alternatively you can enter:
the sides b and c and the angle α, or
the sides a and c and the angle β .
Formulas for calculating the area of a triangle
Calculation with given two sides and their angles
To calculate the area, the length of two sides and the angle can also be multiplied and divided by 2.
\(\displaystyle A = \frac{ a · b · sin(γ)}{2} \)
\(\displaystyle A = \frac{ a · c · sin(β)}{2} \)
\(\displaystyle A = \frac{ b · c · sin(α)}{2} \)
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