26.8.4  Parallelograms in the plane

See Section 27.7.4 for parallelograms in space.

The parallelogram command creates parallelograms.

• parallelogram takes three mandatory arguments and one optional argument:
  • A,B,C, three points.
  • Optionally, var, a variable name.
• parallelogram(A,B,C ⟨,var ⟩) returns and draws the parallelogram ABCD for the appropriate D.

  If the argument var is given, then D will be assigned to it.

Examples