Question

in the cube shown below, which planes are parallel? dgh and hdj dgh and deh deh and def fgj and deh

Explanation:

Step1: Recall parallel - plane concept

In a cube, parallel planes do not intersect.

Step2: Analyze each option

• For "DGH and HDJ": These planes share the line HD, so they are not parallel.
• For "DGH and DEH": These planes share the line DH, so they are not parallel.
• For "DEH and DEF": These planes share the line DE, so they are not parallel.
• For "FGJ and DEH": In a cube, opposite - facing planes are parallel. Plane FGJ and plane DEH are opposite - facing planes, so they are parallel.

Answer:

FGJ and DEH