# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 13.88   b = 12.6   c = 23.28

Area: T = 73.33298345832
Perimeter: p = 49.76
Semiperimeter: s = 24.88

Angle ∠ A = α = 29.99990231951° = 29°59'56″ = 0.52435817271 rad
Angle ∠ B = β = 26.99327072808° = 26°59'34″ = 0.47111116161 rad
Angle ∠ C = γ = 123.0088269524° = 123°30″ = 2.14768993104 rad

Height: ha = 10.56662585855
Height: hb = 11.6439656283
Height: hc = 6.32998139676

Median: ma = 17.38437740436
Median: mb = 18.11001767947
Median: mc = 6.34217347784

Inradius: r = 2.94773406183
Circumradius: R = 13.88804098739

Vertex coordinates: A[23.28; 0] B[0; 0] C[12.36879725086; 6.32998139676]
Centroid: CG[11.88326575029; 2.10999379892]
Coordinates of the circumscribed circle: U[11.64; -7.56114931242]
Coordinates of the inscribed circle: I[12.28; 2.94773406183]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 150.0010976805° = 150°4″ = 0.52435817271 rad
∠ B' = β' = 153.0077292719° = 153°26″ = 0.47111116161 rad
∠ C' = γ' = 56.99217304759° = 56°59'30″ = 2.14768993104 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.