A(x₁, y₁, z₁):
B(x₂, y₂, z₂):
C(x₃, y₃, z₃):
D(x₄, y₄, z₄):
Draw AB
Draw CD
Draw CB (Displacement)
Draw DD′ (Displacement)
Translate CD → C′D′
Translate CD → C′D″ (Opposite)
Draw AD″
Label AB
Label CD
Label CB
Label C′D′
Label C′D″
Label AD″
Reset