Solid or not solid

Hi Cotty,

Thank you so much for your expertise! Being a novice I didn’t even think of looking into it!
Sincerely,
-student_t

Hmm… I did try to draw the two shapes on one plane. But after I erased the small line between them, there was no more plane. All was left was the line segments connecting the shapes and I couldn’t pull any out of the empty skeleton. Must be another newbie miss. Thanks much for taking the time to educate!