If it is SSA(Side, Side, Angle) triangle, then you should get these results:
Obtuse scalene triangle.
Sides: a = 5.9 b = 6.4 c = 12.29
Angle ∠ A = 2.258° = 2°15'31″ = 0.039 rad
Angle ∠ B = 2.45° = 2°27' = 0.043 rad
Angle ∠ C = 175.292° = 175°17'29″ = 3.059 rad
Remember: The 3 angles MUST add up to exactly 180 degrees.
If it is SSA(Side, Side, Angle) triangle, then you should get these results:
Obtuse scalene triangle.
Sides: a = 5.9 b = 6.4 c = 12.29
Angle ∠ A = 2.258° = 2°15'31″ = 0.039 rad
Angle ∠ B = 2.45° = 2°27' = 0.043 rad
Angle ∠ C = 175.292° = 175°17'29″ = 3.059 rad
Remember: The 3 angles MUST add up to exactly 180 degrees.