Calculate the area of a triangle
Calculate the area of a triangle given a side and the height
This function calculates the area of a triangle. Enter the length of the baseline and the height for the calculation. Then click on Calculate. The height line intersects the base line at an angle of 90 °.
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Formulas for calculating the area of a triangle
Given is one side and height
In principle, the area of a triangle is calculated like the area of a half parallelogram. To calculate the area, the length of one side is multiplied by the corresponding height and divided by 2.
Any of the three sides can be used as a base. The height line that is at an angle of 90° to the baseline must always be used.
\(\displaystyle A = \frac{ a · h_a}{2} \)
\(\displaystyle A = \frac{ b · h_b}{2} \)
\(\displaystyle A = \frac{ c · h_c}{2} \)
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