# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 115   b = 90   c = 92.34

Area: T = 4067.346628284
Perimeter: p = 297.34
Semiperimeter: s = 148.67

Angle ∠ A = α = 78.19904710873° = 78°11'26″ = 1.36546811642 rad
Angle ∠ B = β = 509.9999162262° = 50° = 0.87326631639 rad
Angle ∠ C = γ = 51.81096126865° = 51°48'35″ = 0.90442483256 rad

Height: ha = 70.73664570928
Height: hb = 90.3855472952
Height: hc = 88.09550028772

Median: ma = 70.76107786842
Median: mb = 94.07988913625
Median: mc = 92.36224983421

Inradius: r = 27.3588218086
Circumradius: R = 58.74334000906

Vertex coordinates: A[92.34; 0] B[0; 0] C[73.92107039203; 88.09550028772]
Centroid: CG[55.42202346401; 29.36550009591]
Coordinates of the circumscribed circle: U[46.17; 36.32196662183]
Coordinates of the inscribed circle: I[58.67; 27.3588218086]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 101.8109528913° = 101°48'34″ = 1.36546811642 rad
∠ B' = β' = 1300.000083774° = 130° = 0.87326631639 rad
∠ C' = γ' = 128.1990387313° = 128°11'25″ = 0.90442483256 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    