Which are diagonals through the interior of the cube? Select all the apply.

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

the answer is a. 72. but i cant answer with less than 20 characters so here's some random text talking about it.