Triangle Calculator

Find all sides, angles, area, and perimeter of any triangle.

Area6
Perimeter12
Angle A (deg)36.87
Angle B (deg)53.13
Angle C (deg)90
Triangle TypeScalene Right
How this is calculated

Uses Law of Cosines for SSS/SAS and Law of Sines for ASA. Area = 0.5 x a x b x sin(C).