3 28 28 triangle

Acute isosceles triangle.

Sides: a = 3   b = 28   c = 28

Area: T = 41.943968884
Perimeter: p = 59
Semiperimeter: s = 29.5

Angle ∠ A = α = 6.14217736222° = 6°8'30″ = 0.10771941716 rad
Angle ∠ B = β = 86.92991131889° = 86°55'45″ = 1.5177199241 rad
Angle ∠ C = γ = 86.92991131889° = 86°55'45″ = 1.5177199241 rad

Height: ha = 27.965979256
Height: hb = 2.996569206
Height: hc = 2.996569206

Median: ma = 27.965979256
Median: mb = 14.16598022585
Median: mc = 14.16598022585

Inradius: r = 1.42216843675
Circumradius: R = 14.022013263

Vertex coordinates: A[28; 0] B[0; 0] C[0.16107142857; 2.996569206]
Centroid: CG[9.38769047619; 0.999856402]
Coordinates of the circumscribed circle: U[14; 0.75110785338]
Coordinates of the inscribed circle: I[1.5; 1.42216843675]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 173.8588226378° = 173°51'30″ = 0.10771941716 rad
∠ B' = β' = 93.07108868111° = 93°4'15″ = 1.5177199241 rad
∠ C' = γ' = 93.07108868111° = 93°4'15″ = 1.5177199241 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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