# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 22   b = 27   c = 28

Area: T = 276.9599270471
Perimeter: p = 77
Semiperimeter: s = 38.5

Angle ∠ A = α = 47.11329286182° = 47°6'47″ = 0.82222757246 rad
Angle ∠ B = β = 64.05655202276° = 64°3'20″ = 1.1187979732 rad
Angle ∠ C = γ = 68.83215511542° = 68°49'54″ = 1.20113371969 rad

Height: ha = 25.17881154974
Height: hb = 20.51655015164
Height: hc = 19.78328050337

Median: ma = 25.20991253319
Median: mb = 21.25444113068
Median: mc = 20.26107995894

Inradius: r = 7.1943747285
Circumradius: R = 15.01330378121

Vertex coordinates: A[28; 0] B[0; 0] C[9.625; 19.78328050337]
Centroid: CG[12.54216666667; 6.59442683446]
Coordinates of the circumscribed circle: U[14; 5.42113747655]
Coordinates of the inscribed circle: I[11.5; 7.1943747285]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 132.8877071382° = 132°53'13″ = 0.82222757246 rad
∠ B' = β' = 115.9444479772° = 115°56'40″ = 1.1187979732 rad
∠ C' = γ' = 111.1688448846° = 111°10'6″ = 1.20113371969 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.