How it works
Area uses Heron's formula √(s(s−a)(s−b)(s−c)); angles use the law of cosines.
Triangle Calculator
Area, perimeter and angles from three sides.
Your details
Area
6
Perimeter
12
Angle A
36.87°
Angle B
53.13°
Angle C
90°
Area, perimeter and angles from three sides.
Area uses Heron's formula √(s(s−a)(s−b)(s−c)); angles use the law of cosines.