# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 12.37   b = 8.06   c = 8.94

Area: T = 35.97108276783
Perimeter: p = 29.37
Semiperimeter: s = 14.685

Angle ∠ A = α = 93.23438897447° = 93°14'2″ = 1.62772383505 rad
Angle ∠ B = β = 40.58222378543° = 40°34'56″ = 0.70882936684 rad
Angle ∠ C = γ = 46.1843872401° = 46°11'2″ = 0.80660606347 rad

Height: ha = 5.81658169245
Height: hb = 8.92657636919
Height: hc = 8.04771650287

Median: ma = 5.8477168118
Median: mb = 10.01114609324
Median: mc = 9.43444766681

Inradius: r = 2.44994945644
Circumradius: R = 6.19548648775

Vertex coordinates: A[8.94; 0] B[0; 0] C[9.39546812081; 8.04771650287]
Centroid: CG[6.11215604027; 2.68223883429]
Coordinates of the circumscribed circle: U[4.47; 4.28989918222]
Coordinates of the inscribed circle: I[6.625; 2.44994945644]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 86.76661102553° = 86°45'58″ = 1.62772383505 rad
∠ B' = β' = 139.4187762146° = 139°25'4″ = 0.70882936684 rad
∠ C' = γ' = 133.8166127599° = 133°48'58″ = 0.80660606347 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.