# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 38   b = 42   c = 5.75

Area: T = 82.43998904329
Perimeter: p = 85.75
Semiperimeter: s = 42.875

Angle ∠ A = α = 43.03215320784° = 43°1'54″ = 0.75110419169 rad
Angle ∠ B = β = 131.0421655707° = 131°2'30″ = 2.28771083494 rad
Angle ∠ C = γ = 5.92768122145° = 5°55'37″ = 0.10334423873 rad

Height: ha = 4.33768363386
Height: hb = 3.92438043063
Height: hc = 28.66108314549

Median: ma = 23.18547201838
Median: mb = 17.24990941791
Median: mc = 39.94766441019

Inradius: r = 1.92218633337
Circumradius: R = 27.84328768284

Vertex coordinates: A[5.75; 0] B[0; 0] C[-24.95110869565; 28.66108314549]
Centroid: CG[-6.44003623188; 9.5543610485]
Coordinates of the circumscribed circle: U[2.875; 27.69440456612]
Coordinates of the inscribed circle: I[0.875; 1.92218633337]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 136.9688467922° = 136°58'6″ = 0.75110419169 rad
∠ B' = β' = 48.9588344293° = 48°57'30″ = 2.28771083494 rad
∠ C' = γ' = 174.0733187785° = 174°4'23″ = 0.10334423873 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.