# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 140   b = 247   c = 360

Area: T = 12203.96332881
Perimeter: p = 747
Semiperimeter: s = 373.5

Angle ∠ A = α = 15.93218086017° = 15°55'55″ = 0.27880625159 rad
Angle ∠ B = β = 28.96655895447° = 28°57'56″ = 0.50655449073 rad
Angle ∠ C = γ = 135.1032601854° = 135°6'9″ = 2.35879852304 rad

Height: ha = 174.3422332687
Height: hb = 98.81875165029
Height: hc = 67.8799796045

Median: ma = 300.6733410863
Median: mb = 243.6143936383
Median: mc = 88.9077255047

Inradius: r = 32.67546005036
Circumradius: R = 255.0165516396

Vertex coordinates: A[360; 0] B[0; 0] C[122.48875; 67.8799796045]
Centroid: CG[160.8299166667; 22.6599932015]
Coordinates of the circumscribed circle: U[180; -180.6465823652]
Coordinates of the inscribed circle: I[126.5; 32.67546005036]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 164.0688191398° = 164°4'5″ = 0.27880625159 rad
∠ B' = β' = 151.0344410455° = 151°2'4″ = 0.50655449073 rad
∠ C' = γ' = 44.89773981463° = 44°53'51″ = 2.35879852304 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 ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.