Triangle calculator VC

Please enter the coordinates of the three vertices


Right scalene triangle.

Sides: a = 2.82884271247   b = 4.24326406871   c = 5.09990195136

Area: T = 6
Perimeter: p = 12.17700873255
Semiperimeter: s = 6.08550436627

Angle ∠ A = α = 33.6990067526° = 33°41'24″ = 0.58880026035 rad
Angle ∠ B = β = 56.3109932474° = 56°18'36″ = 0.98327937232 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad

Height: ha = 4.24326406871
Height: hb = 2.82884271247
Height: hc = 2.35333936217

Median: ma = 4.4722135955
Median: mb = 3.53655339059
Median: mc = 2.55495097568

Inradius: r = 0.98660241491
Circumradius: R = 2.55495097568

Vertex coordinates: A[-5; 4] B[0; 3] C[-2; 1]
Centroid: CG[-2.33333333333; 2.66766666667]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[0.65773494328; 0.98660241491]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 146.3109932474° = 146°18'36″ = 0.58880026035 rad
∠ B' = β' = 123.6990067526° = 123°41'24″ = 0.98327937232 rad
∠ C' = γ' = 90° = 1.57107963268 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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