4 14 17 triangle
Obtuse scalene triangle.
Sides: a = 4 b = 14 c = 17Area: T = 20.33331625676
Perimeter: p = 35
Semiperimeter: s = 17.5
Angle ∠ A = α = 9.83882269853° = 9°50'18″ = 0.17217094535 rad
Angle ∠ B = β = 36.7299236457° = 36°43'45″ = 0.64110461079 rad
Angle ∠ C = γ = 133.4332536558° = 133°25'57″ = 2.32988370922 rad
Height: ha = 10.16765812838
Height: hb = 2.90547375097
Height: hc = 2.39221367727
Median: ma = 15.44334452115
Median: mb = 10.17334949747
Median: mc = 5.80994750193
Inradius: r = 1.16218950039
Circumradius: R = 11.70550163352
Vertex coordinates: A[17; 0] B[0; 0] C[3.20658823529; 2.39221367727]
Centroid: CG[6.73552941176; 0.79773789242]
Coordinates of the circumscribed circle: U[8.5; -8.04771987305]
Coordinates of the inscribed circle: I[3.5; 1.16218950039]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 170.1621773015° = 170°9'42″ = 0.17217094535 rad
∠ B' = β' = 143.2710763543° = 143°16'15″ = 0.64110461079 rad
∠ C' = γ' = 46.56774634422° = 46°34'3″ = 2.32988370922 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
