Perpendicular is an object that is at 90 degrees of a surface (opposite of parallel).
Question: What edges are perpendicular to the edge QE?
This is slightly confusing because they didn't say if they have to be adjustant..I'm guessing not. It also is confusing because there are so many edges..
Edges perpendicular to QE:
QP, EH, PR, HA, QT, EJ, TR, JA
Edges that are perpendicular to QE that are options:
QP, EJ, PR, TQ
