Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 37   b = 34   c = 3.26

Area: T = 22.62111103262
Perimeter: p = 74.26
Semiperimeter: s = 37.13

Angle ∠ A = α = 155.9109698704° = 155°54'35″ = 2.72111375782 rad
Angle ∠ B = β = 22.02992938194° = 22°1'45″ = 0.3844483709 rad
Angle ∠ C = γ = 2.06110074769° = 2°3'40″ = 0.03659713664 rad

Height: ha = 1.22327627203
Height: hb = 1.33106535486
Height: hc = 13.87879817952

Median: ma = 15.52662294199
Median: mb = 20.02203346625
Median: mc = 35.49442685514

Inradius: r = 0.60992407844
Circumradius: R = 45.32435931047

Vertex coordinates: A[3.26; 0] B[0; 0] C[34.29987116564; 13.87879817952]
Centroid: CG[12.52195705521; 4.62659939317]
Coordinates of the circumscribed circle: U[1.63; 45.29442732795]
Coordinates of the inscribed circle: I[3.13; 0.60992407844]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 24.09903012963° = 24°5'25″ = 2.72111375782 rad
∠ B' = β' = 157.9710706181° = 157°58'15″ = 0.3844483709 rad
∠ C' = γ' = 177.9398992523° = 177°56'20″ = 0.03659713664 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     