Triangle calculator VC

Please enter the coordinates of the three vertices


Acute scalene triangle.

Sides: a = 9.89994949366   b = 5.38551648071   c = 9.22195444573

Area: T = 24.5
Perimeter: p = 24.5044204201
Semiperimeter: s = 12.25221021005

Angle ∠ A = α = 80.72773982228° = 80°43'39″ = 1.40989588956 rad
Angle ∠ B = β = 32.47111922908° = 32°28'16″ = 0.56767292175 rad
Angle ∠ C = γ = 66.80114094864° = 66°48'5″ = 1.16659045405 rad

Height: ha = 4.95497474683
Height: hb = 9.09990715707
Height: hc = 5.31547962166

Median: ma = 5.70108771255
Median: mb = 9.17987798753
Median: mc = 6.5

Inradius: r = 21.9996568588
Circumradius: R = 5.01552827662

Vertex coordinates: A[6; 3] B[-3; 5] C[4; -2]
Centroid: CG[2.33333333333; 2]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[3.1422317921; 21.9996568588]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 99.27326017772° = 99°16'21″ = 1.40989588956 rad
∠ B' = β' = 147.5298807709° = 147°31'44″ = 0.56767292175 rad
∠ C' = γ' = 113.1998590514° = 113°11'55″ = 1.16659045405 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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