Afficher/Cacher le quadrilatère

(AD) parallèle à (BC)

Longueur segment vert :

Longueur segment rouge :

Longueur segment bleu :

Déplace les trois points de couleurs afin d'obtenir les quadrilatères suivants :

- un parallélogramme
- un losange
- un rectangle
- un carré
- un trapèze
- un cerf-volant


 

Afficher/Cacher les consignes

a = 5.5 (slider from 1 to 10, step 0.5)
b = 7 (slider from 1 to 10, step 0.5)
c = 3.5 (slider from 1 to 10, step 0.5)
A = (10.188862202454725, -0.8477786983023087)
B = Point(Circle[A, a])
f = Segment(A, B)
C = Point(Circle[B, b])
g = Segment(B, C)
D = Point(Circle[A, c])
h = Segment(A, D)
α = Angle(D, A, B)
β = Angle(A, B, C)
i = OrthogonalLine(A, f)
j = OrthogonalLine(B, f)
D_1 = ClosestPoint(i, D)
C_1 = ClosestPoint(j, C)
k = Line(B, h)
l = Line(A, g)
D_2 = ClosestPoint(l, D)
C_2 = ClosestPoint(k, C)
testpara: C ≟ C_2 ∧ D ≟ D_2 ∨ D ≟ D_1 ∧ C ≟ D_1
q1, b_1, c_1, d, a_1 = Polygon(B, C, D, A)
e = false
testeg1: Distance[D, A] ≟ Distance[A, B]
testeg2: Distance[B, C] ≟ Distance[A, B]
testeg3: Distance[D, A] ≟ Distance[C, B]
q = Segment(A, C)
r = Segment(B, D)
E = Intersect(q, r)
o = false