Given a box with coordinates:

BOTTOM:

A

B

C

D

TOP:

E

F

G

H

Determine the width of the box in the direction, its tallness in the direction and its depth in the direction.

I said it'd be 7 units long in the x direction, 4 in the y and 6 in the z. Is this right? I just took the highest of each and subtracted the lowest of each (respective to the coordinates).