Triangle calculator SSA

Please enter two sides and a non-included angle
°


Triangle has two solutions with side c=10.2665585662 and with side c=3.33003475024

#1 Acute scalene triangle.

Sides: a = 12.8   b = 11.4   c = 10.2665585662

Area: T = 55.71765464101
Perimeter: p = 34.4665585662
Semiperimeter: s = 17.2332792831

Angle ∠ A = α = 72.21221794948° = 72°12'44″ = 1.26603402922 rad
Angle ∠ B = β = 58° = 1.01222909662 rad
Angle ∠ C = γ = 49.78878205052° = 49°47'16″ = 0.86989613952 rad

Height: ha = 8.70657103766
Height: hb = 9.77548327035
Height: hc = 10.85550156308

Median: ma = 8.75884887105
Median: mb = 10.10554997151
Median: mc = 10.98797284918

Inradius: r = 3.23331698615
Circumradius: R = 6.72113168992

Vertex coordinates: A[10.2665585662; 0] B[0; 0] C[6.78329665822; 10.85550156308]
Centroid: CG[5.68328507481; 3.61883385436]
Coordinates of the circumscribed circle: U[5.1332792831; 4.33994168517]
Coordinates of the inscribed circle: I[5.8332792831; 3.23331698615]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 107.7887820505° = 107°47'16″ = 1.26603402922 rad
∠ B' = β' = 122° = 1.01222909662 rad
∠ C' = γ' = 130.2122179495° = 130°12'44″ = 0.86989613952 rad




How did we calculate this triangle?

1. Use Law of Cosines


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