# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 2.24   b = 3.16   c = 2.24

Area: T = 2.50987693557
Perimeter: p = 7.64
Semiperimeter: s = 3.82

Angle ∠ A = α = 45.14215956949° = 45°8'30″ = 0.78878694745 rad
Angle ∠ B = β = 89.71768086102° = 89°43'1″ = 1.56658537046 rad
Angle ∠ C = γ = 45.14215956949° = 45°8'30″ = 0.78878694745 rad

Height: ha = 2.2439972639
Height: hb = 1.58878287061
Height: hc = 2.2439972639

Median: ma = 2.49994399373
Median: mb = 1.58878287061
Median: mc = 2.49994399373

Inradius: r = 0.65767459046
Circumradius: R = 1.58800192995

Vertex coordinates: A[2.24; 0] B[0; 0] C[0.01110714286; 2.2439972639]
Centroid: CG[0.75503571429; 0.74766575463]
Coordinates of the circumscribed circle: U[1.12; 1.11444778988]
Coordinates of the inscribed circle: I[0.66; 0.65767459046]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 134.8588404305° = 134°51'30″ = 0.78878694745 rad
∠ B' = β' = 90.28331913898° = 90°16'59″ = 1.56658537046 rad
∠ C' = γ' = 134.8588404305° = 134°51'30″ = 0.78878694745 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    