What I Know Read each question below. You may draw a Venn diagram to help you find the
Select your answer from the choices lettered A to D and write the letter of
answer.
your choice on a separate sheet of paper.
For items 1 - 2.
Let A - { 1, 2, 3, 4, 5, 6}, B= {2, 4, 5, 6
1. Find AUB.
A. {1, 2, 3, 4, 5, 6
B. {2, 4, 5, 6
C.{2,4, 6}
D.{1,3, 5

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.