14 14 26 triangle

Obtuse isosceles triangle.

Sides: a = 14   b = 14   c = 26

Area: T = 67.55499814952
Perimeter: p = 54
Semiperimeter: s = 27

Angle ∠ A = α = 21.78767892983° = 21°47'12″ = 0.38802512067 rad
Angle ∠ B = β = 21.78767892983° = 21°47'12″ = 0.38802512067 rad
Angle ∠ C = γ = 136.4266421403° = 136°25'35″ = 2.38110902402 rad

Height: ha = 9.65499973565
Height: hb = 9.65499973565
Height: hc = 5.19661524227

Median: ma = 19.67223155729
Median: mb = 19.67223155729
Median: mc = 5.19661524227

Inradius: r = 2.50218511665
Circumradius: R = 18.86601087935

Vertex coordinates: A[26; 0] B[0; 0] C[13; 5.19661524227]
Centroid: CG[13; 1.73220508076]
Coordinates of the circumscribed circle: U[13; -13.66439563708]
Coordinates of the inscribed circle: I[13; 2.50218511665]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 158.2133210702° = 158°12'48″ = 0.38802512067 rad
∠ B' = β' = 158.2133210702° = 158°12'48″ = 0.38802512067 rad
∠ C' = γ' = 43.57435785965° = 43°34'25″ = 2.38110902402 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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