# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 38.05   b = 5.66   c = 42.05

Area: T = 79.98986163341
Perimeter: p = 85.76
Semiperimeter: s = 42.88

Angle ∠ A = α = 42.2344363747° = 42°14'4″ = 0.73771287049 rad
Angle ∠ B = β = 5.73883420793° = 5°44'18″ = 0.11001529629 rad
Angle ∠ C = γ = 132.0277294174° = 132°1'38″ = 2.30443109858 rad

Height: ha = 4.20443950767
Height: hb = 28.265452874
Height: hc = 3.80444526199

Median: ma = 23.19884573841
Median: mb = 409.9999199999
Median: mc = 17.25988651133

Inradius: r = 1.86554061645
Circumradius: R = 28.304407177

Vertex coordinates: A[42.05; 0] B[0; 0] C[37.85993269917; 3.80444526199]
Centroid: CG[26.63664423306; 1.26881508733]
Coordinates of the circumscribed circle: U[21.025; -18.9499138602]
Coordinates of the inscribed circle: I[37.22; 1.86554061645]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 137.7665636253° = 137°45'56″ = 0.73771287049 rad
∠ B' = β' = 174.2621657921° = 174°15'42″ = 0.11001529629 rad
∠ C' = γ' = 47.97327058263° = 47°58'22″ = 2.30443109858 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.