Heron’s formula

Heron’s formula provides a way to find the area of a triangle when you know the lengths of all three sides. First, you add the side lengths and divide by two to find the semi-perimeter (s). Then, you use this semi-perimeter in the formula: Area = √[s(s - a)(s - b)(s - c)], where a, b, and c are the side lengths. This method allows calculation of the area without needing to know the height or angles, making it especially useful when only side measurements are available.