20 20 22 triangle

Acute isosceles triangle.

Sides: a = 20   b = 20   c = 22

Area: T = 183.7366223973
Perimeter: p = 62
Semiperimeter: s = 31

Angle ∠ A = α = 56.63329870308° = 56°37'59″ = 0.98884320889 rad
Angle ∠ B = β = 56.63329870308° = 56°37'59″ = 0.98884320889 rad
Angle ∠ C = γ = 66.73440259385° = 66°44'3″ = 1.16547284757 rad

Height: ha = 18.37436223973
Height: hb = 18.37436223973
Height: hc = 16.70332930885

Median: ma = 18.49332420089
Median: mb = 18.49332420089
Median: mc = 16.70332930885

Inradius: r = 5.92769749669
Circumradius: R = 11.97436868018

Vertex coordinates: A[22; 0] B[0; 0] C[11; 16.70332930885]
Centroid: CG[11; 5.56877643628]
Coordinates of the circumscribed circle: U[11; 4.73296062867]
Coordinates of the inscribed circle: I[11; 5.92769749669]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 123.3677012969° = 123°22'1″ = 0.98884320889 rad
∠ B' = β' = 123.3677012969° = 123°22'1″ = 0.98884320889 rad
∠ C' = γ' = 113.2665974062° = 113°15'57″ = 1.16547284757 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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