19 19 26 triangle

Acute isosceles triangle.

Sides: a = 19   b = 19   c = 26

Area: T = 180.1333283987
Perimeter: p = 64
Semiperimeter: s = 32

Angle ∠ A = α = 46.82664488927° = 46°49'35″ = 0.81772757102 rad
Angle ∠ B = β = 46.82664488927° = 46°49'35″ = 0.81772757102 rad
Angle ∠ C = γ = 86.34771022145° = 86°20'50″ = 1.50770412332 rad

Height: ha = 18.96113983144
Height: hb = 18.96113983144
Height: hc = 13.85664064606

Median: ma = 20.69442020866
Median: mb = 20.69442020866
Median: mc = 13.85664064606

Inradius: r = 5.62991651246
Circumradius: R = 13.02664654486

Vertex coordinates: A[26; 0] B[0; 0] C[13; 13.85664064606]
Centroid: CG[13; 4.61988021535]
Coordinates of the circumscribed circle: U[13; 0.8329941012]
Coordinates of the inscribed circle: I[13; 5.62991651246]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 133.1743551107° = 133°10'25″ = 0.81772757102 rad
∠ B' = β' = 133.1743551107° = 133°10'25″ = 0.81772757102 rad
∠ C' = γ' = 93.65328977855° = 93°39'10″ = 1.50770412332 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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