Area: T = 8.944427191 Perimeter: p = 20 Semiperimeter: s = 10
Angle ∠ A = α = 12.75987404169° = 12°45'31″ = 0.22326820287 rad Angle ∠ B = β = 83.62106297916° = 83°37'14″ = 1.45994553125 rad Angle ∠ C = γ = 83.62106297916° = 83°37'14″ = 1.45994553125 rad
Height: ha = 8.944427191 Height: hb = 1.988761598 Height: hc = 1.988761598
Median: ma = 8.944427191 Median: mb = 4.7176990566 Median: mc = 4.7176990566
Inradius: r = 0.8944427191 Circumradius: R = 4.52880376544
Vertex coordinates: A[9; 0] B[0; 0] C[0.22222222222; 1.988761598] Centroid: CG[3.07440740741; 0.663253866] Coordinates of the circumscribed circle: U[4.5; 0.50331152949] Coordinates of the inscribed circle: I[1; 0.8944427191]
Exterior(or external, outer) angles of the triangle: ∠ A' = α' = 167.2411259583° = 167°14'29″ = 0.22326820287 rad ∠ B' = β' = 96.37993702084° = 96°22'46″ = 1.45994553125 rad ∠ C' = γ' = 96.37993702084° = 96°22'46″ = 1.45994553125 rad