6 19 20 triangle

Obtuse scalene triangle.

Sides: a = 6   b = 19   c = 20

Area: T = 56.99550655759
Perimeter: p = 45
Semiperimeter: s = 22.5

Angle ∠ A = α = 17.45660432733° = 17°27'22″ = 0.30546654295 rad
Angle ∠ B = β = 71.79900431357° = 71°47'24″ = 1.25329726229 rad
Angle ∠ C = γ = 90.7543913591° = 90°45'14″ = 1.58439546012 rad

Height: ha = 18.9988355192
Height: hb = 5.99994805869
Height: hc = 5.76995065576

Median: ma = 19.27443352674
Median: mb = 11.30326545555
Median: mc = 9.92547166206

Inradius: r = 2.53331140256
Circumradius: R = 10.00108657634

Vertex coordinates: A[20; 0] B[0; 0] C[1.875; 5.76995065576]
Centroid: CG[7.29216666667; 1.98998355192]
Coordinates of the circumscribed circle: U[10; -0.1321590339]
Coordinates of the inscribed circle: I[3.5; 2.53331140256]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 162.5443956727° = 162°32'38″ = 0.30546654295 rad
∠ B' = β' = 108.2109956864° = 108°12'36″ = 1.25329726229 rad
∠ C' = γ' = 89.2466086409° = 89°14'46″ = 1.58439546012 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.


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