# Triangle calculator SSS - result

### Obtuse scalene triangle.

Sides: a = 15.23   b = 17.03   c = 7.62

Area: T = 58.0266299993
Perimeter: p = 39.88
Semiperimeter: s = 19.94

Angle ∠ A = α = 63.41991919155° = 63°25'9″ = 1.10768737079 rad
Angle ∠ B = β = 90.00108886695° = 90°3″ = 1.5710811837 rad
Angle ∠ C = γ = 26.5879919415° = 26°34'48″ = 0.46439071087 rad

Height: ha = 7.62199999991
Height: hb = 6.81545977678
Height: hc = 15.23299999982

Median: ma = 10.77328559352
Median: mb = 8.51548943035
Median: mc = 15.69993885231

Vertex coordinates: A[7.62; 0] B[0; 0] C[-00.0002362205; 15.23299999982]
Centroid: CG[2.54399212598; 5.07766666661]
Coordinates of the circumscribed circle: U[3.81; 7.61550590948]
Coordinates of the inscribed circle: I[2.91; 2.91100451351]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 116.5810808085° = 116°34'51″ = 1.10768737079 rad
∠ B' = β' = 89.99991113305° = 89°59'57″ = 1.5710811837 rad
∠ C' = γ' = 153.4220080585° = 153°25'12″ = 0.46439071087 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    