Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 336.07   b = 285   c = 507.51

Area: T = 45191.15222355
Perimeter: p = 1128.58
Semiperimeter: s = 564.29

Angle ∠ A = α = 38.67330974802° = 38°40'23″ = 0.6754972883 rad
Angle ∠ B = β = 321.9999466237° = 32° = 0.5598504429 rad
Angle ∠ C = γ = 109.3276955896° = 109°19'37″ = 1.90881153416 rad

Height: ha = 268.939892484
Height: hb = 317.1310892881
Height: hc = 178.0989701624

Median: ma = 375.713257475
Median: mb = 406.1388489311
Median: mc = 180.8110459944

Inradius: r = 80.08549779998
Circumradius: R = 268.9099288765

Vertex coordinates: A[507.51; 0] B[0; 0] C[285.0043689582; 178.0989701624]
Centroid: CG[264.1711229861; 59.36332338745]
Coordinates of the circumscribed circle: U[253.755; -88.99877840128]
Coordinates of the inscribed circle: I[279.29; 80.08549779998]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 141.327690252° = 141°19'37″ = 0.6754972883 rad
∠ B' = β' = 1488.000053376° = 148° = 0.5598504429 rad
∠ C' = γ' = 70.67330441039° = 70°40'23″ = 1.90881153416 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     