Question

help with geometry, cant find anyone willing to help
(picture)
http://imgur.com/a/vMz7c

Answer 1

What do you think you get with this rotation?

Answer 2

Try to do this experiment with a piece of cardboard

Answer 3

That would be B :)
if ya want an explanation....the best would be trying it experimentally as suggested by @eliesaab :)

Answer 4

I think its create a cylindrical figure has a 1 in radii and has a heigth 1 in, then it create 3 dimensional figure, 1. Is the circular base at the top. 2. A circular base at the bottom 3. The lateral surface area(LSA)...