# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 6   b = 15   c = 19

Area: T = 37.41765738677
Perimeter: p = 40
Semiperimeter: s = 20

Angle ∠ A = α = 15.22327570342° = 15°13'22″ = 0.26656872315 rad
Angle ∠ B = β = 41.02882543699° = 41°1'42″ = 0.71660781251 rad
Angle ∠ C = γ = 123.7498988596° = 123°44'56″ = 2.1659827297 rad

Height: ha = 12.47221912892
Height: hb = 4.98988765157
Height: hc = 3.93985867229

Median: ma = 16.85222995464
Median: mb = 11.92768604419
Median: mc = 6.34442887702

Inradius: r = 1.87108286934
Circumradius: R = 11.42554180918

Vertex coordinates: A[19; 0] B[0; 0] C[4.52663157895; 3.93985867229]
Centroid: CG[7.84221052632; 1.3132862241]
Coordinates of the circumscribed circle: U[9.5; -6.34774544954]
Coordinates of the inscribed circle: I[5; 1.87108286934]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 164.7777242966° = 164°46'38″ = 0.26656872315 rad
∠ B' = β' = 138.972174563° = 138°58'18″ = 0.71660781251 rad
∠ C' = γ' = 56.25110114041° = 56°15'4″ = 2.1659827297 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.