Section\ d'un\ pavé\ droit\ par\ un\ plan\
parallèle\ à\ une\ arête.

A

B

C

D

E

F

G

H

MathsEnClair.com

b = 2.5 (slider from 0 to 4, step 0.1)
F = (4, 4)
B = (4, 0)
s = Circle(B, b)
e = Segment(F, B)
A = (-3, 0)
C = (6, 1)
D = (-1, 1)
E = (-3, 4)
G = (6, 5)
H = (-1, 5)
a_1 = Segment(A, B)
b_1 = Segment(B, C)
c = Segment(C, G)
d = Segment(G, F)
f = Segment(F, E)
g = Segment(E, A)
h = Segment(E, H)
i = Segment(H, G)
j = Segment(A, D)
k = Segment(D, C)
l = Segment(D, H)
a = 4.69 (slider from 0 to 7, step 0.01)
p = Circle(F, a)
I = Intersect(p, f, 1)
J = Intersect(s, e)
m = Line(J, d)
n = Line(I, d)
K = Intersect(n, i)
L = Intersect(m, c)
q = Segment(I, J)
r = Segment(K, L)
poly1, i_1, j_1, l_1, k_1 = Polygon(I, J, L, K)