Since the center is considered the corner that they both share, here are the answers figure a goes with the first, figure b goes with the last, figure c goes with the second, and figure d goes with the third. Hope this helps.
16.33333 (just put a line over the 3 because it just keeps on going and thats what the line shows)
√7 is not a perfect square , so it's irrational
Answer is B. irrational numbers
P.S .
Keep in mind that any of non perfect square is irrational
2009 - 1894 = 115
That appears to be the same number as
the one that appears in Choice-'B'.