# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 60   b = 42   c = 29.33

Area: T = 565.5655316147
Perimeter: p = 131.33
Semiperimeter: s = 65.665

Angle ∠ A = α = 113.3311344124° = 113°19'53″ = 1.97880051007 rad
Angle ∠ B = β = 39.99880023163° = 39°59'53″ = 0.69880968346 rad
Angle ∠ C = γ = 26.67106535601° = 26°40'14″ = 0.46554907183 rad

Height: ha = 18.85221772049
Height: hb = 26.93216817213
Height: hc = 38.56656540161

Median: ma = 20.30108485044
Median: mb = 42.29880430989
Median: mc = 49.66882773508

Inradius: r = 8.61328883903
Circumradius: R = 32.67215579482

Vertex coordinates: A[29.33; 0] B[0; 0] C[45.96440112513; 38.56656540161]
Centroid: CG[25.09880037504; 12.85552180054]
Coordinates of the circumscribed circle: U[14.665; 29.1955350208]
Coordinates of the inscribed circle: I[23.665; 8.61328883903]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 66.66986558764° = 66°40'7″ = 1.97880051007 rad
∠ B' = β' = 140.0021997684° = 140°7″ = 0.69880968346 rad
∠ C' = γ' = 153.329934644° = 153°19'46″ = 0.46554907183 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    