A(x₁, y₁):
B(x₂, y₂):
C(x₃, y₃):
D(x₄, y₄):
Draw AB
Draw CD
C → C′
D → D′
Translate CD → C′D′
Draw D′E
Draw BE
Draw AE
Label D′
Label E
Label AB
Label CD
Label C′D′
Label D′E
Label BE
Label AE
Label CC′
Label DD′
Reset