Triangle calculator

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

You have entered side b, c and angle α.

Right scalene triangle.

Sides: a = 65.73443137182   b = 36   c = 55

Area: T = 990
Perimeter: p = 156.7344313718
Semiperimeter: s = 78.36771568591

Angle ∠ A = α = 90° = 1.57107963268 rad
Angle ∠ B = β = 33.20765703151° = 33°12'24″ = 0.58795639853 rad
Angle ∠ C = γ = 56.79334296849° = 56°47'36″ = 0.99112323415 rad

Height: ha = 30.12112546082
Height: hb = 55
Height: hc = 36

Median: ma = 32.86771568591
Median: mb = 57.87105451849
Median: mc = 45.302176597

Inradius: r = 12.63328431409
Circumradius: R = 32.86771568591

Vertex coordinates: A[55; 0] B[0; 0] C[55; 36]
Centroid: CG[36.66766666667; 12]
Coordinates of the circumscribed circle: U[27.5; 18]
Coordinates of the inscribed circle: I[42.36771568591; 12.63328431409]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 90° = 1.57107963268 rad
∠ B' = β' = 146.7933429685° = 146°47'36″ = 0.58795639853 rad
∠ C' = γ' = 123.2076570315° = 123°12'24″ = 0.99112323415 rad

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How did we calculate this triangle?

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


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