Refer to the Venn diagram for the following questions. What would best describe the universal set U? What would best describe set A? What would best describe A ∪ B? What would best describe A ⋂ B?

1. Positive integers less than 10

2. Prime numbers U

3. Numbers in U that are prime or even

4. Even prime numbers in U

Explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.