200 180 23.54 triangle

Obtuse scalene triangle.

Sides: a = 200   b = 180   c = 23.54

Area: T = 1177.157743026
Perimeter: p = 403.54
Semiperimeter: s = 201.77

Angle ∠ A = α = 146.2465890775° = 146°14'45″ = 2.55224723115 rad
Angle ∠ B = β = 30.0044424696° = 30°16″ = 0.52436760011 rad
Angle ∠ C = γ = 3.75496845292° = 3°44'59″ = 0.06554443409 rad

Height: ha = 11.77215743026
Height: hb = 13.08795270029
Height: hc = 100.0133375553

Median: ma = 80.48802199301
Median: mb = 110.354974309
Median: mc = 189.8998570558

Inradius: r = 5.83441548806
Circumradius: R = 179.9765927224

Vertex coordinates: A[23.54; 0] B[0; 0] C[173.1977357689; 100.0133375553]
Centroid: CG[65.57991192297; 33.3387791851]
Coordinates of the circumscribed circle: U[11.77; 179.5910649757]
Coordinates of the inscribed circle: I[21.77; 5.83441548806]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 33.75441092252° = 33°45'15″ = 2.55224723115 rad
∠ B' = β' = 149.9965575304° = 149°59'44″ = 0.52436760011 rad
∠ C' = γ' = 176.2550315471° = 176°15'1″ = 0.06554443409 rad

How did we calculate this triangle?

1. The triangle circumference is the sum of the lengths of its three sides 2. Semiperimeter of the triangle 3. The triangle area using Heron's formula 4. Calculate the heights of the triangle from its area. 5. Calculation of the inner angles of the triangle using a Law of Cosines     