Question

A cube has edge lengths of 6 inches. What is the approximate length of a diagonal "d" of the cube?

A)6 in.
B)8.4 in.
C)10.4 in.
D)12 in.

Answer 1

recall that the diagonal of a cube is given by
d = sqrt(3*s^2)
where s = length of side of cube
substituting,
d = sqrt(3*6^2)
d = sqrt(108)
d = 10.39 = 10.4 in

hope this helps~ :)

Answer 2

THANKS ALOT JAI!!!!! :)