# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 120.32   b = 204.61   c = 179.95

Area: T = 10753.56985663
Perimeter: p = 504.88
Semiperimeter: s = 252.44

Angle ∠ A = α = 35.74110192707° = 35°44'28″ = 0.62437984643 rad
Angle ∠ B = β = 83.37880087917° = 83°22'41″ = 1.45552207772 rad
Angle ∠ C = γ = 60.88109719376° = 60°52'51″ = 1.06325734121 rad

Height: ha = 178.7499477498
Height: hb = 105.113283482
Height: hc = 119.5177294429

Median: ma = 183.042207631
Median: mb = 113.856578345
Median: mc = 141.6888308004

Inradius: r = 42.59985127803
Circumradius: R = 102.9922103852

Vertex coordinates: A[179.95; 0] B[0; 0] C[13.87551119755; 119.5177294429]
Centroid: CG[64.60883706585; 39.83990981431]
Coordinates of the circumscribed circle: U[89.975; 50.1198587679]
Coordinates of the inscribed circle: I[47.83; 42.59985127803]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 144.2598980729° = 144°15'32″ = 0.62437984643 rad
∠ B' = β' = 96.62219912083° = 96°37'19″ = 1.45552207772 rad
∠ C' = γ' = 119.1199028062° = 119°7'9″ = 1.06325734121 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    