Calculate triangle area using one-half multiplied by base and perpendicular height. The height must be measured at a right angle to the base.
How this calculation works
Triangle area = base × perpendicular height ÷ 2.
Check that your inputs use consistent units and assumptions. Results are estimates for general information and should be checked against the rules or requirements that apply to your situation.
Results are estimates based on the inputs and assumptions shown. Check the methodology before relying on a result.