Triangle calculator

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

You have entered side a, b and angle β.

Triangle has two solutions: a=100; b=67; c=54.72441969737 and a=100; b=67; c=100.7054995318.

#1 Obtuse scalene triangle.

Sides: a = 100   b = 67   c = 54.72441969737

Area: T = 1721.953265197
Perimeter: p = 221.7244196974
Semiperimeter: s = 110.8622098487

Angle ∠ A = α = 110.068831319° = 110°4'6″ = 1.92110544673 rad
Angle ∠ B = β = 39° = 0.68106784083 rad
Angle ∠ C = γ = 30.93216868105° = 30°55'54″ = 0.5439859778 rad

Height: ha = 34.43990530394
Height: hb = 51.40215717005
Height: hc = 62.9322039105

Median: ma = 35.24401598635
Median: mb = 73.31552021562
Median: mc = 80.59766225496

Inradius: r = 15.53223837044
Circumradius: R = 53.23220269237

Vertex coordinates: A[54.72441969737; 0] B[0; 0] C[77.71545961457; 62.9322039105]
Centroid: CG[44.14662643731; 20.97773463683]
Coordinates of the circumscribed circle: U[27.36220984868; 45.66114088351]
Coordinates of the inscribed circle: I[43.86220984868; 15.53223837044]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 69.93216868105° = 69°55'54″ = 1.92110544673 rad
∠ B' = β' = 141° = 0.68106784083 rad
∠ C' = γ' = 149.068831319° = 149°4'6″ = 0.5439859778 rad




How did we calculate this triangle?

1. Input data entered: side a, b and angle β.


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