Triangle calculator

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

You have entered side b, c and angle γ.

Triangle has two solutions: a=3.894395228; b=45; c=42 and a=67.02770155446; b=45; c=42.

#1 Obtuse scalene triangle.

Sides: a = 3.894395228   b = 45   c = 42

Area: T = 53.94105191246
Perimeter: p = 90.894395228
Semiperimeter: s = 45.447697614

Angle ∠ A = α = 3.27222167114° = 3°16'20″ = 0.05771109555 rad
Angle ∠ B = β = 138.7287783289° = 138°43'40″ = 2.42112565824 rad
Angle ∠ C = γ = 38° = 0.66332251158 rad

Height: ha = 27.70547663897
Height: hb = 2.39773564055
Height: hc = 2.56985961488

Median: ma = 43.48222870133
Median: mb = 19.57988516563
Median: mc = 24.06441108745

Inradius: r = 1.18768890673
Circumradius: R = 34.11096541551

Vertex coordinates: A[42; 0] B[0; 0] C[-2.92766325672; 2.56985961488]
Centroid: CG[13.02444558109; 0.85661987163]
Coordinates of the circumscribed circle: U[21; 26.87987742761]
Coordinates of the inscribed circle: I[0.447697614; 1.18768890673]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 176.7287783289° = 176°43'40″ = 0.05771109555 rad
∠ B' = β' = 41.27222167114° = 41°16'20″ = 2.42112565824 rad
∠ C' = γ' = 142° = 0.66332251158 rad




How did we calculate this triangle?

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


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