# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 2   b = 28   c = 29

Area: T = 24.66765259005
Perimeter: p = 59
Semiperimeter: s = 29.5

Angle ∠ A = α = 3.48331495666° = 3°28'59″ = 0.06107924283 rad
Angle ∠ B = β = 58.27437045405° = 58°16'25″ = 1.01770680116 rad
Angle ∠ C = γ = 118.2433145893° = 118°14'35″ = 2.06437322137 rad

Height: ha = 24.66765259005
Height: hb = 1.76218947072
Height: hc = 1.70111397173

Median: ma = 28.48768390665
Median: mb = 15.05499169433
Median: mc = 13.55554417117

Inradius: r = 0.83661534204
Circumradius: R = 16.46595533898

Vertex coordinates: A[29; 0] B[0; 0] C[1.05217241379; 1.70111397173]
Centroid: CG[10.01772413793; 0.56770465724]
Coordinates of the circumscribed circle: U[14.5; -7.78988958005]
Coordinates of the inscribed circle: I[1.5; 0.83661534204]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 176.5176850433° = 176°31'1″ = 0.06107924283 rad
∠ B' = β' = 121.7266295459° = 121°43'35″ = 1.01770680116 rad
∠ C' = γ' = 61.75768541071° = 61°45'25″ = 2.06437322137 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    