Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 6.01   b = 2.5   c = 3.71

Area: T = 2.30108050765
Perimeter: p = 12.22
Semiperimeter: s = 6.11

Angle ∠ A = α = 150.2565677221° = 150°15'20″ = 2.62224562873 rad
Angle ∠ B = β = 11.91101232645° = 11°54'36″ = 0.20878708653 rad
Angle ∠ C = γ = 17.83441995142° = 17°50'3″ = 0.3111265501 rad

Height: ha = 0.76656589273
Height: hb = 1.84106440612
Height: hc = 1.24403261868

Median: ma = 0.98884457496
Median: mb = 4.83552455987
Median: mc = 4.21223657249

Inradius: r = 0.37765638423
Circumradius: R = 6.05768744577

Vertex coordinates: A[3.71; 0] B[0; 0] C[5.88106199461; 1.24403261868]
Centroid: CG[3.19768733154; 0.41334420623]
Coordinates of the circumscribed circle: U[1.855; 5.76658219879]
Coordinates of the inscribed circle: I[3.61; 0.37765638423]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 29.74443227787° = 29°44'40″ = 2.62224562873 rad
∠ B' = β' = 168.0989876735° = 168°5'24″ = 0.20878708653 rad
∠ C' = γ' = 162.1665800486° = 162°9'57″ = 0.3111265501 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     