1. Draw the base AB.

2. Draw an oblique line AC, length = AB, through A at any convenient angle to AB. (60°.)

3. Take AB as radius and B and C respectively as centres and find D.

4. Connect D with B and C.

Note. - Teach the qualities of a rhombus and compare with square. It may prove convenient to construct an equilateral triangle on AB, thus getting the 60° angle at A.