# Triangle calculator SSS - result

Please enter the triangle sides:

### Right scalene triangle.

Sides: a = 1077.98   b = 479.95   c = 1180

Area: T = 258688.2550494
Perimeter: p = 2737.93
Semiperimeter: s = 1368.965

Angle ∠ A = α = 665.9995654595° = 65°59'58″ = 1.15219097222 rad
Angle ∠ B = β = 244.0000404563° = 24° = 0.41988797266 rad
Angle ∠ C = γ = 900.0003940842° = 90°1″ = 1.57108032049 rad

Height: ha = 479.9549999989
Height: hb = 1077.987999997
Height: hc = 438.4554661854

Median: ma = 721.7110316644
Median: mb = 1104.37697024
Median: mc = 589.9976984272

Inradius: r = 188.9666299718
Circumradius: R = 5900.000000014

Vertex coordinates: A[1180; 0] B[0; 0] C[984.7833422839; 438.4554661854]
Centroid: CG[721.594447428; 146.1521553951]
Coordinates of the circumscribed circle: U[590; -0.00440580593]
Coordinates of the inscribed circle: I[889.015; 188.9666299718]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 1144.00043454° = 114°2″ = 1.15219097222 rad
∠ B' = β' = 1565.999959544° = 156° = 0.41988797266 rad
∠ C' = γ' = 909.9996059158° = 89°59'59″ = 1.57108032049 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    