Question

In the diagram below, which edges of the prism are parallel to AD ? (Select all that apply.)

DH
BC
EF
FG

Answer 1

I would have to say BC because its directly across from AD and it also could be EH but thats not a choice.

Answer 2

Given is the shape of a rectangular prism. All the parallel edges are diagonally opposite to each other, it means that parallel edges directly face opposite to each other and they do not have any common vertex. So we have two sets of parallel edges that are {AB, CD, EF, and GH} and {AD, BC, EH, and FG}.

It says to select all edges from the given options that are parallel to AD.

Given options are :- 1. DH, 2. BC, 3. EF, 4. FG.

We have AD ║ BC ║ EH ║ FG.

Hence, only BC and FG are the final answers.