2 16 17 triangle
Obtuse scalene triangle.
Sides: a = 2 b = 16 c = 17Area: T = 14.26331518256
Perimeter: p = 35
Semiperimeter: s = 17.5
Angle ∠ A = α = 6.02200291433° = 6°1'12″ = 0.10550693296 rad
Angle ∠ B = β = 57.03656126762° = 57°2'8″ = 0.99554592321 rad
Angle ∠ C = γ = 116.944435818° = 116°56'40″ = 2.04110640919 rad
Height: ha = 14.26331518256
Height: hb = 1.78328939782
Height: hc = 1.67880178618
Median: ma = 16.47772570533
Median: mb = 9.08329510623
Median: mc = 7.59993420768
Inradius: r = 0.81550372472
Circumradius: R = 9.53550594078
Vertex coordinates: A[17; 0] B[0; 0] C[1.08882352941; 1.67880178618]
Centroid: CG[6.02994117647; 0.55993392873]
Coordinates of the circumscribed circle: U[8.5; -4.32105737942]
Coordinates of the inscribed circle: I[1.5; 0.81550372472]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 173.9879970857° = 173°58'48″ = 0.10550693296 rad
∠ B' = β' = 122.9644387324° = 122°57'52″ = 0.99554592321 rad
∠ C' = γ' = 63.05656418195° = 63°3'20″ = 2.04110640919 rad
Calculate another triangle
How did we calculate this triangle?
Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.
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

6. Inradius

7. Circumradius
