# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 14   b = 29   c = 29

Area: T = 196.9977461913
Perimeter: p = 72
Semiperimeter: s = 36

Angle ∠ A = α = 27.93659253493° = 27°56'9″ = 0.48875738769 rad
Angle ∠ B = β = 76.03220373253° = 76°1'55″ = 1.32770093883 rad
Angle ∠ C = γ = 76.03220373253° = 76°1'55″ = 1.32770093883 rad

Height: ha = 28.14224945589
Height: hb = 13.5866031856
Height: hc = 13.5866031856

Median: ma = 28.14224945589
Median: mb = 17.55770498661
Median: mc = 17.55770498661

Inradius: r = 5.47221517198
Circumradius: R = 14.94218168713

Vertex coordinates: A[29; 0] B[0; 0] C[3.37993103448; 13.5866031856]
Centroid: CG[10.79331034483; 4.52986772853]
Coordinates of the circumscribed circle: U[14.5; 3.60766454517]
Coordinates of the inscribed circle: I[7; 5.47221517198]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 152.0644074651° = 152°3'51″ = 0.48875738769 rad
∠ B' = β' = 103.9687962675° = 103°58'5″ = 1.32770093883 rad
∠ C' = γ' = 103.9687962675° = 103°58'5″ = 1.32770093883 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    