# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 173.07   b = 115.38   c = 208

Area: T = 9984.40882902
Perimeter: p = 496.45
Semiperimeter: s = 248.225

Angle ∠ A = α = 56.31216897639° = 56°18'42″ = 0.98328243937 rad
Angle ∠ B = β = 33.69108485293° = 33°41'27″ = 0.58880162346 rad
Angle ∠ C = γ = 89.99774617068° = 89°59'51″ = 1.57107520252 rad

Height: ha = 115.3879999887
Height: hb = 173.076999983
Height: hc = 96.00439258673

Median: ma = 144.2221933058
Median: mb = 182.4299373594
Median: mc = 104.0044253038

Inradius: r = 40.22332180087
Circumradius: R = 1044.000000102

Vertex coordinates: A[208; 0] B[0; 0] C[144.0021635817; 96.00439258673]
Centroid: CG[117.3343878606; 32.00113086224]
Coordinates of the circumscribed circle: U[104; 0.00546073637]
Coordinates of the inscribed circle: I[132.845; 40.22332180087]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 123.6888310236° = 123°41'18″ = 0.98328243937 rad
∠ B' = β' = 146.3099151471° = 146°18'33″ = 0.58880162346 rad
∠ C' = γ' = 90.00325382932° = 90°9″ = 1.57107520252 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    