# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 1506.98   b = 1409.04   c = 1049

Area: T = 710413.9699412
Perimeter: p = 3965.02
Semiperimeter: s = 1982.51

Angle ∠ A = α = 744.0004789953° = 74°2″ = 1.29215520065 rad
Angle ∠ B = β = 643.9995468367° = 63°59'58″ = 1.11770028121 rad
Angle ∠ C = γ = 421.999974168° = 42° = 0.7333037835 rad

Height: ha = 942.8311317486
Height: hb = 1008.366593626
Height: hc = 1354.459942691

Median: ma = 987.4976926932
Median: mb = 1090.572160691
Median: mc = 1361.283284019

Inradius: r = 358.3410673899
Circumradius: R = 783.8533342898

Vertex coordinates: A[1049; 0] B[0; 0] C[660.6277263489; 1354.459942691]
Centroid: CG[569.8765754496; 451.4866475635]
Coordinates of the circumscribed circle: U[524.5; 582.5176792181]
Coordinates of the inscribed circle: I[573.47; 358.3410673899]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 1065.999521005° = 105°59'58″ = 1.29215520065 rad
∠ B' = β' = 1166.000453163° = 116°2″ = 1.11770028121 rad
∠ C' = γ' = 1388.000025832° = 138° = 0.7333037835 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    