The area of a non-right triangle can be calculated using the formula A = 0.5 * base * height, where the base and height are perpendicular to each other. Alternatively, you can also use Heron's formula, which states that the area of a triangle can be calculated using the lengths of all three sides of the triangle. The formula is A = √(s*(s-a)*(s-b)*(s-c)), where s is the semiperimeter of the triangle (s = (a+b+c)/2) and a, b, and c are the lengths of the sides of the triangle.
