Author: maryvonne

Sélectionner l'outil cercle4pts ( en haut, à droite). Cliquer sur les points A,B,C, D.

1 Déplacer les points pour observer.
Sauriez-vous construire ce cercle ?
2 Recommencer en cliquant  successivement sur B,C, D, A.

A = (-0.4279999999999997, 3.2640000000000007)
B = (2.5200000000000005, 4.562)
C = (5.556000000000001, 2.8240000000000003)
D = (2.1020000000000008, 0.3820000000000003)

Tool: cercle4pts
Input: A, B, C, D
Output: e

c = Circle(A, B, C)
a = LineBisector(A, B)
b = LineBisector(B, C)
E = Intersect(a, b)
d = Ray(E, D)
F = Intersect(c, d, 1)
G = Midpoint(D, F)
e = Circle(E, G)