16 17 28 triangle

Obtuse scalene triangle.

Sides: a = 16   b = 17   c = 28

Area: T = 122.17217541
Perimeter: p = 61
Semiperimeter: s = 30.5

Angle ∠ A = α = 30.8865674594° = 30°53'8″ = 0.53990567134 rad
Angle ∠ B = β = 33.05326598356° = 33°3'10″ = 0.57768777407 rad
Angle ∠ C = γ = 116.062166557° = 116°3'42″ = 2.02656581996 rad

Height: ha = 15.27114692626
Height: hb = 14.37331475412
Height: hc = 8.72765538643

Median: ma = 21.73770651193
Median: mb = 21.16601039695
Median: mc = 8.74664278423

Inradius: r = 4.0065631282
Circumradius: R = 15.58546170338

Vertex coordinates: A[28; 0] B[0; 0] C[13.41107142857; 8.72765538643]
Centroid: CG[13.80435714286; 2.90988512881]
Coordinates of the circumscribed circle: U[14; -6.84769181453]
Coordinates of the inscribed circle: I[13.5; 4.0065631282]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 149.1144325406° = 149°6'52″ = 0.53990567134 rad
∠ B' = β' = 146.9477340164° = 146°56'50″ = 0.57768777407 rad
∠ C' = γ' = 63.93883344296° = 63°56'18″ = 2.02656581996 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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