Triangle calculator

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

You have entered height hc, angle α, angle β and angle γ.

Acute isosceles triangle.

Sides: a = 27.58444479741   b = 27.58444479741   c = 23.31553829077

Area: T = 291.4422286347
Perimeter: p = 78.48442788559
Semiperimeter: s = 39.24221394279

Angle ∠ A = α = 65° = 1.13444640138 rad
Angle ∠ B = β = 65° = 1.13444640138 rad
Angle ∠ C = γ = 50° = 0.8732664626 rad

Height: ha = 21.1310913087
Height: hb = 21.1310913087
Height: hc = 25

Median: ma = 21.49548594454
Median: mb = 21.49548594454
Median: mc = 25

Inradius: r = 7.42767685349
Circumradius: R = 15.21880354007

Vertex coordinates: A[23.31553829077; 0] B[0; 0] C[11.65876914539; 25]
Centroid: CG[11.65876914539; 8.33333333333]
Coordinates of the circumscribed circle: U[11.65876914539; 9.78219645993]
Coordinates of the inscribed circle: I[11.65876914539; 7.42767685349]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 115° = 1.13444640138 rad
∠ B' = β' = 115° = 1.13444640138 rad
∠ C' = γ' = 130° = 0.8732664626 rad

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How did we calculate this triangle?

1. Input data entered: angle α, angle β, angle γ and height hc.


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