Triangle calculator

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

You have entered side a, c and angle β.

Obtuse scalene triangle.

Sides: a = 1.2   b = 0.91105925113   c = 2.1

Area: T = 0.11098162359
Perimeter: p = 4.21105925113
Semiperimeter: s = 2.10552962556

Angle ∠ A = α = 6.5955311683° = 6°35'43″ = 0.11551099041 rad
Angle ∠ B = β = 5° = 0.08772664626 rad
Angle ∠ C = γ = 168.4054688317° = 168°24'17″ = 2.93992162869 rad

Height: ha = 0.18330270598
Height: hb = 0.24111973182
Height: hc = 0.10545868913

Median: ma = 1.50331930551
Median: mb = 1.64985464263
Median: mc = 0.17991350351

Inradius: r = 0.0522161892
Circumradius: R = 5.22439386791

Vertex coordinates: A[2.1; 0] B[0; 0] C[1.19554336377; 0.10545868913]
Centroid: CG[1.09884778792; 0.03548622971]
Coordinates of the circumscribed circle: U[1.05; -5.11773269705]
Coordinates of the inscribed circle: I[1.19547037444; 0.0522161892]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 173.4054688317° = 173°24'17″ = 0.11551099041 rad
∠ B' = β' = 175° = 0.08772664626 rad
∠ C' = γ' = 11.5955311683° = 11°35'43″ = 2.93992162869 rad

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How did we calculate this triangle?

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


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