σχ. 1

σχ. 2

σχ. 3

σχ. 4

Ποιά από τα ανωτέρω σχήματα είναι ορθογώνια;

ΑΒΓΔ (σχ. 1)

ΕΖΗΘ (σχ 2)

ΙΚΛΜ (σχ. 3)

ΝΞΟΠ (σχ. 4)

ΣΩΣΤΟ

ΣΩΣΤΟ

ΛΑΘΟΣ

ΣΩΣΤΟ

Α = (-8.080969980386191, 7.141110056096019)
Β = (-8.08, 5.38)
Γ = (-3.7524543532177383, 5.369438543580562)
Δ = (-3.772586984041778, 7.181375317744097)
q1, α, β, γ, δ = Polygon(Α, Β, Γ, Δ)
ε = Angle(Α, Δ, Γ)
ζ = Angle(Δ, Γ, Β)
η = Angle(Γ, Β, Α)
f = Segment(Α, Γ)
g = Segment(Β, Δ)
O = Intersect(g, f)
h = Segment(Α, O)
i = Segment(O, Γ)
j = Segment(O, Δ)
k = Segment(O, Β)
l = Segment(Α, O)
m = Segment(O, Γ)
n = Segment(O, Γ)
Ε = (-1.26, 6.98)
Ζ = (-1.24, 5.04)
Η = (3.34, 5)
Θ = (3.48, 7.02)
q2, ε_1, ζ_1, η_1, θ = Polygon(Ε, Ζ, Η, Θ)
ι = Angle(Ζ, Ε, Θ)
p = Segment(Ε, Θ)
q = Segment(Θ, Η)
r = Segment(Ζ, Η)
s = Segment(Ε, Ζ)
Ι = (-7.19764686628776, 3.794120438827477)
Κ = (-7.436725794016933, 0.6986681924034488)
Λ = (-3.4705975216811877, 0.3765460992188204)
Μ = (-2.95764686628776, 2.894120438827477)
q3, ι_1, κ, λ, μ = Polygon(Ι, Κ, Λ, Μ)
ν = Angle(Ι, Μ, Λ)
ξ = Angle(Λ, Κ, Ι)
Ν = (1, 3)
Ξ = (1, 1)
Ο = (4, 1)
Π = (4, 3)
q4, ν_1, ξ_1, ο, π_1 = Polygon(Ν, Ξ, Ο, Π)
ρ = Angle(Ν, Π, Ο)
σ = Angle(Π, Ο, Ξ)
τ = Angle(Ο, Ξ, Ν)
a = false
b = false
c = false
d = false