15 16 28 triangle

Obtuse scalene triangle.

Sides: a = 15   b = 16   c = 28

Area: T = 93.07695304598
Perimeter: p = 59
Semiperimeter: s = 29.5

Angle ∠ A = α = 24.55501133573° = 24°33' = 0.42884803098 rad
Angle ∠ B = β = 26.30774810463° = 26°18'27″ = 0.45991521622 rad
Angle ∠ C = γ = 129.1422405596° = 129°8'33″ = 2.25439601816 rad

Height: ha = 12.4099270728
Height: hb = 11.63436913075
Height: hc = 6.64878236043

Median: ma = 21.53548554674
Median: mb = 20.98880918618
Median: mc = 6.67108320321

Inradius: r = 3.15548993376
Circumradius: R = 18.05110204758

Vertex coordinates: A[28; 0] B[0; 0] C[13.44664285714; 6.64878236043]
Centroid: CG[13.81554761905; 2.21659412014]
Coordinates of the circumscribed circle: U[14; -11.39547066753]
Coordinates of the inscribed circle: I[13.5; 3.15548993376]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 155.4549886643° = 155°27' = 0.42884803098 rad
∠ B' = β' = 153.6932518954° = 153°41'33″ = 0.45991521622 rad
∠ C' = γ' = 50.85875944036° = 50°51'27″ = 2.25439601816 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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