# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 14   b = 15   c = 23

Area: T = 101.4699207152
Perimeter: p = 52
Semiperimeter: s = 26

Angle ∠ A = α = 36.03113118284° = 36°1'53″ = 0.62988650252 rad
Angle ∠ B = β = 39.06880914837° = 39°4'5″ = 0.68218668289 rad
Angle ∠ C = γ = 104.9010596688° = 104°54'2″ = 1.83108607995 rad

Height: ha = 14.49656010217
Height: hb = 13.52992276202
Height: hc = 8.82334093175

Median: ma = 18.11107702763
Median: mb = 17.5
Median: mc = 8.84659030065

Inradius: r = 3.90326618135
Circumradius: R = 11.99001619693

Vertex coordinates: A[23; 0] B[0; 0] C[10.87695652174; 8.82334093175]
Centroid: CG[11.29898550725; 2.94111364392]
Coordinates of the circumscribed circle: U[11.5; -3.06600416492]
Coordinates of the inscribed circle: I[11; 3.90326618135]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 143.9698688172° = 143°58'7″ = 0.62988650252 rad
∠ B' = β' = 140.9321908516° = 140°55'55″ = 0.68218668289 rad
∠ C' = γ' = 75.09994033122° = 75°5'58″ = 1.83108607995 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    