Mathematics for IGCSE & O level - Sets (Section 2 - No. 13)
Which of the following are characteristics of a Venn diagram?
Circles are often used to represent sets.
A rectangle is used to represent the universal set.
Overlapping regions illustrate common elements.
The diagram always includes an infinite number of sets.
Explication
Venn diagrams use circles and rectangles, and the overlaps show common elements.