# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 50   b = 40   c = 79.28

Area: T = 837.5770276552
Perimeter: p = 169.28
Semiperimeter: s = 84.64

Angle ∠ A = α = 31.88663149008° = 31°53'11″ = 0.55765211813 rad
Angle ∠ B = β = 24.99881143492° = 24°59'53″ = 0.43662994022 rad
Angle ∠ C = γ = 123.116557075° = 123°6'56″ = 2.14987720701 rad

Height: ha = 33.50328110621
Height: hb = 41.87985138276
Height: hc = 21.12994217092

Median: ma = 57.59991249934
Median: mb = 63.18774924332
Median: mc = 21.87985374283

Inradius: r = 9.89656790708
Circumradius: R = 47.32773719349

Vertex coordinates: A[79.28; 0] B[0; 0] C[45.31660847629; 21.12994217092]
Centroid: CG[41.53220282543; 7.04331405697]
Coordinates of the circumscribed circle: U[39.64; -25.85663441782]
Coordinates of the inscribed circle: I[44.64; 9.89656790708]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 148.1143685099° = 148°6'49″ = 0.55765211813 rad
∠ B' = β' = 155.0021885651° = 155°7″ = 0.43662994022 rad
∠ C' = γ' = 56.884442925° = 56°53'4″ = 2.14987720701 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.