Math/

Triangle Area Calculator

Calculate Triangle Area

Calculate the area of a triangle given the Base and Height, or the length of all three sides (Heron's Formula).

Formulas

  • Base & Height:
    Area = ½ × Base × Height
  • Heron's Formula (3 Sides):
    Area = √[s(s-a)(s-b)(s-c)]
    (where s is the semi-perimeter)