Triangle calculator VC

Please enter the coordinates of the three vertices


Obtuse scalene triangle.

Sides: a = 0.94333981132   b = 2.91554759474   c = 1.97223082923

Area: T = 0.025
Perimeter: p = 5.8311182353
Semiperimeter: s = 2.91655911765

Angle ∠ A = α = 0.49882116126° = 0°29'54″ = 0.0098695433 rad
Angle ∠ B = β = 178.4660161711° = 178°27'37″ = 3.11547174055 rad
Angle ∠ C = γ = 1.0421626676° = 1°2'30″ = 0.01881798151 rad

Height: ha = 0.0532999894
Height: hb = 0.01771498585
Height: hc = 0.02553510063

Median: ma = 2.4443869882
Median: mb = 0.5154781507
Median: mc = 1.92993781382

Inradius: r = 0.00985745904
Circumradius: R = 54.24774423361

Vertex coordinates: A[2.5; 2] B[4.2; 3] C[5; 3.5]
Centroid: CG[3.9; 2.83333333333]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[-0.31989747614; 0.00985745904]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 179.5021788387° = 179°30'6″ = 0.0098695433 rad
∠ B' = β' = 1.54398382886° = 1°32'23″ = 3.11547174055 rad
∠ C' = γ' = 178.9588373324° = 178°57'30″ = 0.01881798151 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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