31. The Allo-Inclusive Scale contains seven pairs of Venn diagrams that range in how far apart the circles are. 32. Venn diagrams normally comprise overlapping circles.33. Note the analogy to the union, difference, and intersection of two sets, as illustrated in the Venn diagram . 34. Wildseed has boiled down teen-age existence into a Venn diagram with three circles : entertainment, relationships and fashion. 35. Venn diagrams are very similar to Euler diagrams, which were invented by Leonhard Euler in the 18th century.36. Traditionally the " emptiness " of a set in Venn diagrams is depicted by shading in the region. 37. In the Venn diagrams , the black areas indicate no elements, and the red areas indicate at least one element. 38. Knowledge Integration Maps are a form of concept map that combine elements of traditional concept maps with Venn diagrams . 39. It is used to create UML diagrams, floor plans, Venn diagrams , flowcharts and various other kinds of diagrams online. 40. The area on the Venn Diagram that is part of both circles represents P ( A and B ).
