What is a
rhombus? Move points A, B or C and observe how the rhombus changes. Now
show the constructs. The rhombus was constructed by creating in order:
points A and B
the line through A and B
the circle centre B with A on circumference
the point C on the circle
the line through B and C
the translation of the line through A and B to pass through C
the translation of the line through B and C to pass through A