Question

Alex has two different size book ends for his bigger books and smaller books what is the length of the diagonal distance x of his smaller bookend

Answer 1

its 7.2 I took the test :P

Explanation:

Answer 2

10/12 = 6/x
12 X 6 = 72
10 X x = 10x
10x = 72
10x/10 = 72/10
x = 7.2
10/12 = 6/7.2
0.83 = 0.83
x = 7.2