22 25 28 triangle

Acute scalene triangle.

Sides: a = 22   b = 25   c = 28

Area: T = 262.7233119462
Perimeter: p = 75
Semiperimeter: s = 37.5

Angle ∠ A = α = 48.64656289465° = 48°38'44″ = 0.84990263918 rad
Angle ∠ B = β = 58.53991669546° = 58°32'21″ = 1.02217012047 rad
Angle ∠ C = γ = 72.81552040989° = 72°48'55″ = 1.2710865057 rad

Height: ha = 23.88439199511
Height: hb = 21.0187849557
Height: hc = 18.76659371044

Median: ma = 24.15657446584
Median: mb = 21.85774929944
Median: mc = 18.93440962288

Inradius: r = 7.00659498523
Circumradius: R = 14.65442108966

Vertex coordinates: A[28; 0] B[0; 0] C[11.48221428571; 18.76659371044]
Centroid: CG[13.16107142857; 6.25553123681]
Coordinates of the circumscribed circle: U[14; 4.33296532194]
Coordinates of the inscribed circle: I[12.5; 7.00659498523]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 131.3544371054° = 131°21'16″ = 0.84990263918 rad
∠ B' = β' = 121.4610833045° = 121°27'39″ = 1.02217012047 rad
∠ C' = γ' = 107.1854795901° = 107°11'5″ = 1.2710865057 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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