Every triangle is uniquely defined by 3 independent values (dimensions or sizes). By specifying 3 independent characteristics (sizes or dimensions) of a particular triangle, we calculate and determine all of the other characteristics.
Please note:
If you provide more then 3 elements of the triangle, only 3 from the provided ones will be used for the construction of the triangle. They will be selected in the following order of preference: sides, at most 2 angles, altitudes, radiuses, perimeter and area.
Since the sum of the inner angles of every triangle is 180° (π rad), by specifying 2 inner angles of the triangle (for example α and β), 3rd angle is automatically determined (γ = 180° - α - β).
