Triangle calculator

Please enter what you know about the triangle:
Symbols definition of ABC triangle

You have entered side a, b and c.

Acute scalene triangle.

Sides: a = 310   b = 466   c = 400

Area: T = 61230.79553892
Perimeter: p = 1176
Semiperimeter: s = 588

Angle ∠ A = α = 41.07701666127° = 41°4'13″ = 0.71768096317 rad
Angle ∠ B = β = 80.9655320375° = 80°57'55″ = 1.41331114205 rad
Angle ∠ C = γ = 57.96545130122° = 57°57'52″ = 1.01216716014 rad

Height: ha = 395.0377389608
Height: hb = 262.7933113259
Height: hc = 306.1543976946

Median: ma = 405.6511328113
Median: mb = 271.5989764167
Median: mc = 341.5088418637

Inradius: r = 104.1344005764
Circumradius: R = 235.9277034888

Vertex coordinates: A[400; 0] B[0; 0] C[48.68; 306.1543976946]
Centroid: CG[149.56; 102.0511325649]
Coordinates of the circumscribed circle: U[200; 125.1466177692]
Coordinates of the inscribed circle: I[122; 104.1344005764]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 138.9329833387° = 138°55'47″ = 0.71768096317 rad
∠ B' = β' = 99.0354679625° = 99°2'5″ = 1.41331114205 rad
∠ C' = γ' = 122.0355486988° = 122°2'8″ = 1.01216716014 rad

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How did we calculate this triangle?

1. Input data entered: side a, b and c.


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