# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 6   b = 14   c = 16

Area: T = 41.56992193817
Perimeter: p = 36
Semiperimeter: s = 18

Angle ∠ A = α = 21.78767892983° = 21°47'12″ = 0.38802512067 rad
Angle ∠ B = β = 60° = 1.04771975512 rad
Angle ∠ C = γ = 98.21332107017° = 98°12'48″ = 1.71441438957 rad

Height: ha = 13.85664064606
Height: hb = 5.93884599117
Height: hc = 5.19661524227

Median: ma = 14.73109198627
Median: mb = 9.84988578018
Median: mc = 7.21111025509

Inradius: r = 2.30994010768
Circumradius: R = 8.08329037687

Vertex coordinates: A[16; 0] B[0; 0] C[3; 5.19661524227]
Centroid: CG[6.33333333333; 1.73220508076]
Coordinates of the circumscribed circle: U[8; -1.15547005384]
Coordinates of the inscribed circle: I[4; 2.30994010768]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 158.2133210702° = 158°12'48″ = 0.38802512067 rad
∠ B' = β' = 120° = 1.04771975512 rad
∠ C' = γ' = 81.78767892983° = 81°47'12″ = 1.71441438957 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    