# Triangle calculator - result

You have entered side b, c and angle α.

### Right scalene triangle.

Sides: a = 68.96437585983   b = 34   c = 60

Area: T = 1020
Perimeter: p = 162.9643758598
Semiperimeter: s = 81.48218792991

Angle ∠ A = α = 90° = 1.57107963268 rad
Angle ∠ B = β = 29.53987822596° = 29°32'20″ = 0.51655490075 rad
Angle ∠ C = γ = 60.46112177404° = 60°27'40″ = 1.05552473193 rad

Height: ha = 29.58107543189
Height: hb = 60
Height: hc = 34

Median: ma = 34.48218792991
Median: mb = 62.36218473107
Median: mc = 45.3433136195

Vertex coordinates: A[60; 0] B[0; 0] C[60; 34]
Centroid: CG[40; 11.33333333333]
Coordinates of the circumscribed circle: U[30; 17]
Coordinates of the inscribed circle: I[47.48218792991; 12.51881207009]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 90° = 1.57107963268 rad
∠ B' = β' = 150.461121774° = 150°27'40″ = 0.51655490075 rad
∠ C' = γ' = 119.539878226° = 119°32'20″ = 1.05552473193 rad

# How did we calculate this triangle?

### 2. Calculation of the third side a of the triangle using a Law of Cosines

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.