Identify which of these terms do not belong with the other three: square, circle , hexagon or triangle and explain your reasoning

What is the measure of x, in degrees

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?