Triangle calculator

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

You have entered side a, c and angle γ.

Triangle has two solutions: a=380; b=252.6633368508; c=150 and a=380; b=482.4660123602; c=150.

#1 Obtuse scalene triangle.

Sides: a = 380   b = 252.6633368508   c = 150

Area: T = 12181.91440423
Perimeter: p = 782.6633368508
Semiperimeter: s = 391.3321684254

Angle ∠ A = α = 139.9955074621° = 139°59'42″ = 2.44333749887 rad
Angle ∠ B = β = 25.30549253788° = 25°18'18″ = 0.44216542648 rad
Angle ∠ C = γ = 14.7° = 14°42' = 0.25765634 rad

Height: ha = 64.11553370645
Height: hb = 96.42880189422
Height: hc = 162.4265520563

Median: ma = 84.0879658021
Median: mb = 259.7898963495
Median: mc = 313.8388157165

Inradius: r = 31.12993834167
Circumradius: R = 295.5577248947

Vertex coordinates: A[150; 0] B[0; 0] C[343.537740738; 162.4265520563]
Centroid: CG[164.5122469127; 54.14218401878]
Coordinates of the circumscribed circle: U[75; 285.8832996006]
Coordinates of the inscribed circle: I[138.6688315746; 31.12993834167]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 40.00549253788° = 40°18″ = 2.44333749887 rad
∠ B' = β' = 154.6955074621° = 154°41'42″ = 0.44216542648 rad
∠ C' = γ' = 165.3° = 165°18' = 0.25765634 rad




How did we calculate this triangle?

1. Input data entered: side a, c and angle γ.


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