39 80 89 triangle

Right scalene triangle.

Sides: a = 39   b = 80   c = 89

Area: T = 1560
Perimeter: p = 208
Semiperimeter: s = 104

Angle ∠ A = α = 25.98992335838° = 25°59'21″ = 0.45435976961 rad
Angle ∠ B = β = 64.01107664162° = 64°39″ = 1.11771986307 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad

Height: ha = 80
Height: hb = 39
Height: hc = 35.05661797753

Median: ma = 82.34222734687
Median: mb = 55.86659108939
Median: mc = 44.5

Inradius: r = 15
Circumradius: R = 44.5

Vertex coordinates: A[89; 0] B[0; 0] C[17.09898876404; 35.05661797753]
Centroid: CG[35.36332958801; 11.68553932584]
Coordinates of the circumscribed circle: U[44.5; 0]
Coordinates of the inscribed circle: I[24; 15]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 154.0110766416° = 154°39″ = 0.45435976961 rad
∠ B' = β' = 115.9899233584° = 115°59'21″ = 1.11771986307 rad
∠ C' = γ' = 90° = 1.57107963268 rad

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How did we calculate this triangle?


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