Sides: a = 18.11107702763 b = 20.24884567313 c = 9.05553851381
Area: T = 82 Perimeter: p = 47.41546121457 Semiperimeter: s = 23.70773060729
Angle ∠ A = α = 63.43549488229° = 63°26'6″ = 1.10771487178 rad Angle ∠ B = β = 90° = 1.57107963268 rad Angle ∠ C = γ = 26.56550511771° = 26°33'54″ = 0.4643647609 rad
Height: ha = 9.05553851381 Height: hb = 8.09993826925 Height: hc = 18.11107702763
Median: ma = 12.80662484749 Median: mb = 10.12442283657 Median: mc = 18.66881547026
Inradius: r = 3.45988493415 Circumradius: R = 10.12442283657
Vertex coordinates: A[-2; 3] B[7; 4] C[5; 22] Centroid: CG[3.33333333333; 9.66766666667] Coordinates of the circumscribed circle: U[0; 0] Coordinates of the inscribed circle: I[0; 3.45988493415]
Exterior(or external, outer) angles of the triangle: ∠ A' = α' = 116.5655051177° = 116°33'54″ = 1.10771487178 rad ∠ B' = β' = 90° = 1.57107963268 rad ∠ C' = γ' = 153.4354948823° = 153°26'6″ = 0.4643647609 rad