For example, the intersection of the two sets is not empty, because there are points that represent creatures that are in both the orange and blue circles.

The area in both A and B, where the two sets overlap, is called the intersection of A and B, denoted by A ∩ B. The union in this case contains all living creatures that are either two-legged, or that can fly (or both). The combined area of sets A and B is called the union of A and B, denoted by A ∪ B. Creatures that are not two-legged and cannot fly (for example, whales and spiders) would all be represented by points outside both circles. Mosquitoes have six legs, and fly, so the point for mosquitoes is in the part of the blue circle that does not overlap with the orange one. Humans and penguins are bipedal, and hence are in the orange circle, but since they cannot fly, they appear in the left part of the orange circle, where it does not overlap with the blue circle. Register free for online tutoring session to clear your. That area contains all such (and only) such living creatures. Learn about venn diagram topic of maths in details explained by subject experts on. Living creatures that can both fly and have two legs-for example, parrots-are then in both sets, and hence correspond to points in the area where the blue and orange circles overlap. Each separate type of creature can be imagined as a point somewhere in the diagram.

The blue circle, set B, represents the living creatures that can fly. The orange circle, set A, represents all living creatures that are two-legged. They could come up with names for both rings that would give at least one. The following example uses two sets, A and B, represented here as coloured circles. Children could be asked to create a Venn diagram which compared penguins and humans. Sets A (creatures with two legs) and B (creatures that can fly)

Venn diagram examples for kids