# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 13   b = 19   c = 23

Area: T = 123.5499746963
Perimeter: p = 55
Semiperimeter: s = 27.5

Angle ∠ A = α = 34.4177308278° = 34°25'2″ = 0.60106953491 rad
Angle ∠ B = β = 55.69986751605° = 55°41'55″ = 0.97221252705 rad
Angle ∠ C = γ = 89.88440165614° = 89°53'2″ = 1.56987720339 rad

Height: ha = 198.9999610713
Height: hb = 132.9999733646
Height: hc = 10.73991084316

Median: ma = 20.06986322404
Median: mb = 16.08657079421
Median: mc = 11.52217186218

Inradius: r = 4.49108998896
Circumradius: R = 11.55000235622

Vertex coordinates: A[23; 0] B[0; 0] C[7.32660869565; 10.73991084316]
Centroid: CG[10.10986956522; 3.58797028105]
Coordinates of the circumscribed circle: U[11.5; 0.02332793999]
Coordinates of the inscribed circle: I[8.5; 4.49108998896]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 145.5832691722° = 145°34'58″ = 0.60106953491 rad
∠ B' = β' = 124.3011324839° = 124°18'5″ = 0.97221252705 rad
∠ C' = γ' = 90.11659834386° = 90°6'58″ = 1.56987720339 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 ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.