4 28 29 triangle

Obtuse scalene triangle.

Sides: a = 4   b = 28   c = 29

Area: T = 55.05439508119
Perimeter: p = 61
Semiperimeter: s = 30.5

Angle ∠ A = α = 7.79333663715° = 7°47'36″ = 0.1366019903 rad
Angle ∠ B = β = 71.66600018715° = 71°39'36″ = 1.25107029746 rad
Angle ∠ C = γ = 100.5476631757° = 100°32'48″ = 1.75548697759 rad

Height: ha = 27.5276975406
Height: hb = 3.9322425058
Height: hc = 3.79768241939

Median: ma = 28.43441344162
Median: mb = 15.2487950682
Median: mc = 13.7754977314

Inradius: r = 1.80550475676
Circumradius: R = 14.74991685524

Vertex coordinates: A[29; 0] B[0; 0] C[1.25986206897; 3.79768241939]
Centroid: CG[10.08662068966; 1.26656080646]
Coordinates of the circumscribed circle: U[14.5; -2.76996246011]
Coordinates of the inscribed circle: I[2.5; 1.80550475676]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 172.2076633629° = 172°12'24″ = 0.1366019903 rad
∠ B' = β' = 108.3439998128° = 108°20'24″ = 1.25107029746 rad
∠ C' = γ' = 79.4533368243° = 79°27'12″ = 1.75548697759 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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