# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 59   b = 40   c = 57.91

Area: T = 1098.134418553
Perimeter: p = 156.91
Semiperimeter: s = 78.455

Angle ∠ A = α = 71.46766227896° = 71°28' = 1.2477327873 rad
Angle ∠ B = β = 40.00113654113° = 40°5″ = 0.69881555317 rad
Angle ∠ C = γ = 68.53220117991° = 68°31'55″ = 1.19661092489 rad

Height: ha = 37.22548876451
Height: hb = 54.90767092765
Height: hc = 37.9265546038

Median: ma = 40.08215924085
Median: mb = 54.93298102127
Median: mc = 41.25766112884

Inradius: r = 13.9976994271
Circumradius: R = 31.11435929017

Vertex coordinates: A[57.91; 0] B[0; 0] C[45.19657183561; 37.9265546038]
Centroid: CG[34.36985727854; 12.64218486793]
Coordinates of the circumscribed circle: U[28.955; 11.38769942589]
Coordinates of the inscribed circle: I[38.455; 13.9976994271]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 108.533337721° = 108°32' = 1.2477327873 rad
∠ B' = β' = 139.9998634589° = 139°59'55″ = 0.69881555317 rad
∠ C' = γ' = 111.4687988201° = 111°28'5″ = 1.19661092489 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.