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Cible atteinte! Bravo.

10 cm

3 cm

B

C

D

Aide?

Pour construire un triangle rectangle,
on peut utiliser l'outil “cercle”. 
N'importe quel point D sur le cercle 
de diamètre [BC] forme un triangle rectangle.

4 cm

A = (-2.59, 2.38)
B = Point(Circle[A, 10])
f = Segment(A, B)
B' = Rotate(B, 45°, A)
α = Angle(B, A, B')
g = Ray(A, B')
i = OrthogonalLine(B, g)
C = Intersect(i, g)
j = OrthogonalLine(A, g)
k = OrthogonalLine(B, i)
D = Intersect(j, k)
l = Segment(A, C)
m = Segment(C, B)
n = Segment(B, D)
p = Segment(D, A)
E = Midpoint(A, B)
F = Midpoint(C, B)
c = Circle(F, B)
d = Circle(C, 3)
G = Intersect(c, d, 2)
h = Segment(C, G)
q = Segment(G, B)
γ = Angle(C, G, B)
H = Midpoint(h)
β = Angle(B, D, A)
I = (-10.072623700473098, 0.33406892728501303)
J = (-7.63, 0.3)
e = Circle(I, J)
r = Line(J, I)
K = Intersect(e, r, 2)
s = Segment(K, J)
L = Point(e)
t = Segment(K, L)
a = Segment(L, J)
δ = Angle(K, L, J)
b = false
M = Midpoint(q)
c_1 = Circle(M, B)
d_1 = Circle(B, 4)
Cible = Intersect(c_1, d_1, 2)
f_1 = Segment(G, Cible)
g_1 = Segment(Cible, B)
ε = Angle(G, Cible, B)
Cible2: Cible
O = Midpoint(g_1)