Mathematics-Venn Diagrams

Sets and its operations can be represented by means of Venn Diagrams, which are closed curves representing sets.

In general, Universal sets are denoted by a rectangle and other sets by a closed curves, like ellipses, circles etc.

Eg::) Let set U = {1, 2, 3, 4, . ........................, 10}
       A = {2, 3, 4, 5}
       B = {3, 4}
      Here U, universal set represented by using rectangle and other sets using circles or ellipses.