11 13 17 triangle

Acute scalene triangle.

Sides: a = 11   b = 13   c = 17

Area: T = 71.54995629357
Perimeter: p = 41
Semiperimeter: s = 20.5

Angle ∠ A = α = 40.32199178356° = 40°19'12″ = 0.70437153204 rad
Angle ∠ B = β = 49.8880417466° = 49°52'50″ = 0.87105775171 rad
Angle ∠ C = γ = 89.87996646984° = 89°47'59″ = 1.56772998162 rad

Height: ha = 132.9999205338
Height: hb = 110.9999327593
Height: hc = 8.41217132866

Median: ma = 14.09878721799
Median: mb = 12.75773508222
Median: mc = 8.52993610546

Inradius: r = 3.48877835578
Circumradius: R = 8.5500051959

Vertex coordinates: A[17; 0] B[0; 0] C[7.08882352941; 8.41217132866]
Centroid: CG[8.02994117647; 2.80439044289]
Coordinates of the circumscribed circle: U[8.5; 0.03297204614]
Coordinates of the inscribed circle: I[7.5; 3.48877835578]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 139.6880082164° = 139°40'48″ = 0.70437153204 rad
∠ B' = β' = 130.1219582534° = 130°7'10″ = 0.87105775171 rad
∠ C' = γ' = 90.22003353016° = 90°12'1″ = 1.56772998162 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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