Use Heron’s formula
Let the side lengths be a, b, and c
Compute the semiperimeter: s = (a + b + c) / 2
Compute the area: A = √[s(s – a)(s – b)(s – c)]
Substitute the three side lengths into the formula
Evaluate the expression to get the area
Use Heron’s formula
Let the side lengths be a, b, and c
Compute the semiperimeter: s = (a + b + c) / 2
Compute the area: A = √[s(s – a)(s – b)(s – c)]
Substitute the three side lengths into the formula
Evaluate the expression to get the area