# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 6.08   b = 6.4   c = 4.47

Area: T = 12.98877201756
Perimeter: p = 16.95
Semiperimeter: s = 8.475

Angle ∠ A = α = 65.22774321344° = 65°13'39″ = 1.13884334534 rad
Angle ∠ B = β = 72.89548393325° = 72°53'41″ = 1.27222549541 rad
Angle ∠ C = γ = 41.87877285332° = 41°52'40″ = 0.73109042462 rad

Height: ha = 4.27222763735
Height: hb = 4.05986625549
Height: hc = 5.81110604812

Median: ma = 4.6077477618
Median: mb = 4.27700878211
Median: mc = 5.82882051268

Inradius: r = 1.5322474357
Circumradius: R = 3.34880980043

Vertex coordinates: A[4.47; 0] B[0; 0] C[1.78882885906; 5.81110604812]
Centroid: CG[2.08660961969; 1.93770201604]
Coordinates of the circumscribed circle: U[2.235; 2.49328969586]
Coordinates of the inscribed circle: I[2.075; 1.5322474357]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 114.7732567866° = 114°46'21″ = 1.13884334534 rad
∠ B' = β' = 107.1055160668° = 107°6'19″ = 1.27222549541 rad
∠ C' = γ' = 138.1222271467° = 138°7'20″ = 0.73109042462 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    