Triangle calculator VC

Please enter the coordinates of the three vertices


Acute scalene triangle.

Sides: a = 5.83109518948   b = 6.08327625303   c = 2.23660679775

Area: T = 6.5
Perimeter: p = 14.15497824026
Semiperimeter: s = 7.07548912013

Angle ∠ A = α = 72.89772710309° = 72°53'50″ = 1.27222973952 rad
Angle ∠ B = β = 85.6011294645° = 85°36'5″ = 1.49440244355 rad
Angle ∠ C = γ = 21.5011434324° = 21°30'5″ = 0.37552708229 rad

Height: ha = 2.22994816069
Height: hb = 2.1377186835
Height: hc = 5.81437767415

Median: ma = 3.53655339059
Median: mb = 3.20215621187
Median: mc = 5.85223499554

Inradius: r = 0.91987420435
Circumradius: R = 3.05503661629

Vertex coordinates: A[3; 1] B[2; -1] C[-3; 2]
Centroid: CG[0.66766666667; 0.66766666667]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[0.07106724649; 0.91987420435]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 107.1032728969° = 107°6'10″ = 1.27222973952 rad
∠ B' = β' = 94.3998705355° = 94°23'55″ = 1.49440244355 rad
∠ C' = γ' = 158.4998565676° = 158°29'55″ = 0.37552708229 rad

Calculate another triangle




How did we calculate this triangle?

1. We compute side a from coordinates using the Pythagorean theorem


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