A: (0, 0)
B: (0, 3)
C: (4, 0)
poly1, c, a, b = Polygon(A, B, C)
distanceAB = Distance(A, B)
文字AB: Name[A] + (Name[B]) + " = " + distanceAB
distanceBC = Distance(B, C)
文字BC: Name[B] + (Name[C]) + " = " + distanceBC
distanceAC = Distance(A, C)
文字AC: Name[A] + (Name[C]) + " = " + distanceAC
α = Angle(C, A, B)
β = Angle(A, B, C)
γ = Angle(B, C, A)
文字poly1: " " + (Name[A]) + (Name[B]) + (Name[C]) + " 面積 = " + poly1
點poly1 = PointIn(poly1)