How can a 2x4 rectangle be cut (and still remain in one piece) and be able to be folded into a 1x1x1 cube?
How about a 3x3 square?
____________
| |
|______...___|
| 1/4 |
|____________|
Rectangle:
Cut on the line as shown except for a segment 1/4
it's length (anywhere) so that you have two 1x4
"strips."
Fold the 1/4 length 'connection' at 90 degrees.
Wrap each strip back onto itself.
Square it out with some creases. Cube.
2 of the opposite faces will be 2 ply.
__Square__
junk | bottom | front
- - -|- - - - |- - - -
junk | back | right
- - -|- - - - |- - - -
left : top : right
Obviously, the right:right junction describes a
180 fold, not a 90.
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Posted by Ryan
on 2007-12-24 14:27:36 |
solution (no units for rectangle)
