# Triangle calculator SSS - result

Please enter the triangle sides:

### Right scalene Pythagorean triangle.

Sides: a = 2.1   b = 1.26   c = 1.68

Area: T = 1.05884
Perimeter: p = 5.04
Semiperimeter: s = 2.52

Angle ∠ A = α = 90° = 1.57107963268 rad
Angle ∠ B = β = 36.87698976458° = 36°52'12″ = 0.64435011088 rad
Angle ∠ C = γ = 53.13301023542° = 53°7'48″ = 0.9277295218 rad

Height: ha = 1.008
Height: hb = 1.68
Height: hc = 1.26

Median: ma = 1.05
Median: mb = 1.79442407865
Median: mc = 1.51443315357

Inradius: r = 0.42
Circumradius: R = 1.05

Vertex coordinates: A[1.68; 0] B[0; 0] C[1.68; 1.26]
Centroid: CG[1.12; 0.42]
Coordinates of the circumscribed circle: U[0.84; 0.63]
Coordinates of the inscribed circle: I[1.26; 0.42]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 90° = 1.57107963268 rad
∠ B' = β' = 143.1330102354° = 143°7'48″ = 0.64435011088 rad
∠ C' = γ' = 126.8769897646° = 126°52'12″ = 0.9277295218 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    