Question

in the cube shown below, which planes are parallel?
fij and fgh
fgj and jkl
fij and ghk
fij and fgj

Explanation:

In a cube, opposite faces are parallel. Check each option:

• "FIJ and FGJ": These share edge FJ, so they intersect (not parallel).
• "FGJ and JKL": FGJ is a top face part, JKL is a vertical face part—they intersect.
• "FIJ and GHK": FIJ is a front face, GHK is a back face (opposite, no intersection).
• "FIJ and FGH": Share edge FG, intersect.

Only FIJ and GHK are parallel.

Answer:

FIJ and GHK