1e (sorry but I didn't understand the video and was not right at all if that is right), 2b, 3c.
I didn't understand what the instructions were saying to do even after looking at the video, only after reading comments. The video cube left no hole so I was not sure how to check my work really. But if you're trying to see who can visualize properly, I can't! I can't really see much without my eyes, and definitely not detail or 3-D.
Anniemaniac wrote:
I couldn't do it as I found it very difficult to visualise a cube passing "perfectly" though a piece of paper. All my mind could picture was a cube being forced though a piece of paper, and leaving a very untidy ripped hole that had no specific shape. My immediate guess was a circle, as I imagined a cube being pushed though a piece of paper with great force, and causing a circular-ish type hole (similar to if you shove a pencil though paper). It wasn't until I looked at the answer that I realised how I was supposed to visualise it. It was the "paper" part that threw me off. To me, a cube can't pass "perfectly" though a piece of paper, without ripping it, so I didn't understand how to visualise that
.
I thought that too.