# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 39.2   b = 28.6   c = 14.04

Area: T = 152.6699408186
Perimeter: p = 81.84
Semiperimeter: s = 40.92

Angle ∠ A = α = 130.4999480758° = 130°29'58″ = 2.27876456114 rad
Angle ∠ B = β = 33.69662709484° = 33°41'47″ = 0.58881108737 rad
Angle ∠ C = γ = 15.8044248294° = 15°48'15″ = 0.27658361685 rad

Height: ha = 7.78992555197
Height: hb = 10.67661823906
Height: hc = 21.74877789439

Median: ma = 11.10876910292
Median: mb = 25.73769539767
Median: mc = 33.5866003037

Inradius: r = 3.73109239537
Circumradius: R = 25.7765505694

Vertex coordinates: A[14.04; 0] B[0; 0] C[32.6144017094; 21.74877789439]
Centroid: CG[15.55113390313; 7.2499259648]
Coordinates of the circumscribed circle: U[7.02; 24.80111349293]
Coordinates of the inscribed circle: I[12.32; 3.73109239537]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 49.50105192423° = 49°30'2″ = 2.27876456114 rad
∠ B' = β' = 146.3043729052° = 146°18'13″ = 0.58881108737 rad
∠ C' = γ' = 164.1965751706° = 164°11'45″ = 0.27658361685 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.