19 25 28 triangle

Acute scalene triangle.

Sides: a = 19   b = 25   c = 28

Area: T = 232.069895527
Perimeter: p = 72
Semiperimeter: s = 36

Angle ∠ A = α = 41.53332182997° = 41°32' = 0.72548914083 rad
Angle ∠ B = β = 60.74333959328° = 60°44'36″ = 1.06601722579 rad
Angle ∠ C = γ = 77.72333857675° = 77°43'24″ = 1.35765289874 rad

Height: ha = 24.4288311081
Height: hb = 18.56655164216
Height: hc = 16.57663539478

Median: ma = 24.78440674628
Median: mb = 20.40222057631
Median: mc = 17.23436879396

Inradius: r = 6.44663598686
Circumradius: R = 14.32876380769

Vertex coordinates: A[28; 0] B[0; 0] C[9.28657142857; 16.57663539478]
Centroid: CG[12.42985714286; 5.52554513159]
Coordinates of the circumscribed circle: U[14; 3.04765083069]
Coordinates of the inscribed circle: I[11; 6.44663598686]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 138.46767817° = 138°28' = 0.72548914083 rad
∠ B' = β' = 119.2576604067° = 119°15'24″ = 1.06601722579 rad
∠ C' = γ' = 102.2776614232° = 102°16'36″ = 1.35765289874 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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