Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 336.07   b = 285   c = 62.49

Area: T = 5563.099868376
Perimeter: p = 683.56
Semiperimeter: s = 341.78

Angle ∠ A = α = 141.3387731228° = 141°20'16″ = 2.46768087672 rad
Angle ∠ B = β = 31.9911492252° = 31°59'29″ = 0.55883568724 rad
Angle ∠ C = γ = 6.67107765198° = 6°40'15″ = 0.11664270139 rad

Height: ha = 33.10767853944
Height: hb = 39.03992890088
Height: hc = 178.0487645503

Median: ma = 119.7054798672
Median: mb = 195.2387733289
Median: mc = 310.0132535916

Inradius: r = 16.27768409028
Circumradius: R = 268.9732807052

Vertex coordinates: A[62.49; 0] B[0; 0] C[285.0329964794; 178.0487645503]
Centroid: CG[115.8439988265; 59.34992151678]
Coordinates of the circumscribed circle: U[31.245; 267.1521868622]
Coordinates of the inscribed circle: I[56.78; 16.27768409028]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 38.66222687718° = 38°39'44″ = 2.46768087672 rad
∠ B' = β' = 148.0098507748° = 148°31″ = 0.55883568724 rad
∠ C' = γ' = 173.329922348° = 173°19'45″ = 0.11664270139 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     