# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 9.63   b = 22   c = 22.43

Area: T = 104.3188313042
Perimeter: p = 54.06
Semiperimeter: s = 27.03

Angle ∠ A = α = 25.01217125229° = 25°42″ = 0.43765367351 rad
Angle ∠ B = β = 74.99656738676° = 74°59'44″ = 1.30989214337 rad
Angle ∠ C = γ = 79.99326136094° = 79°59'33″ = 1.39661344848 rad

Height: ha = 21.66552778904
Height: hb = 9.48334830038
Height: hc = 9.30216774893

Median: ma = 21.68879742023
Median: mb = 13.30111616034
Median: mc = 12.7511165633

Inradius: r = 3.85993530537
Circumradius: R = 11.38882684195

Vertex coordinates: A[22.43; 0] B[0; 0] C[2.4933129737; 9.30216774893]
Centroid: CG[8.30877099123; 3.10105591631]
Coordinates of the circumscribed circle: U[11.215; 1.97989978766]
Coordinates of the inscribed circle: I[5.03; 3.85993530537]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 154.9888287477° = 154°59'18″ = 0.43765367351 rad
∠ B' = β' = 105.0044326132° = 105°16″ = 1.30989214337 rad
∠ C' = γ' = 100.0077386391° = 100°27″ = 1.39661344848 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    