Triangle calculator

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

You have entered side b, c and angle α.

Obtuse scalene triangle.

Sides: a = 31.87546171439   b = 54   c = 67

Area: T = 849.274405708
Perimeter: p = 152.8754617144
Semiperimeter: s = 76.4377308572

Angle ∠ A = α = 28° = 0.48986921906 rad
Angle ∠ B = β = 52.68882898938° = 52°41'18″ = 0.92195841359 rad
Angle ∠ C = γ = 99.31217101062° = 99°18'42″ = 1.73333163271 rad

Height: ha = 53.288842403
Height: hb = 31.45545947067
Height: hc = 25.35114643904

Median: ma = 58.72439490794
Median: mb = 44.98332814392
Median: mc = 29.04772995137

Inradius: r = 11.11107268551
Circumradius: R = 33.94773353346

Vertex coordinates: A[67; 0] B[0; 0] C[19.32108299856; 25.35114643904]
Centroid: CG[28.77436099952; 8.45504881301]
Coordinates of the circumscribed circle: U[33.5; -5.4932865948]
Coordinates of the inscribed circle: I[22.4377308572; 11.11107268551]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 152° = 0.48986921906 rad
∠ B' = β' = 127.3121710106° = 127°18'42″ = 0.92195841359 rad
∠ C' = γ' = 80.68882898938° = 80°41'18″ = 1.73333163271 rad

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How did we calculate this triangle?

1. Input data entered: side b, c and angle α.


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