Visualize
Math brain teasers require computations to solve.
Visualize a cube. You know it has 6 faces, 8 corners, and 12 edges. Now, imagine a knife slicing away each corner with a straight plane cut.
How many total edges are there now?
HintA straight plane cut is a straight, smooth diagonal cut.
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Answer
There are now 36 edges.
(The original 12 edges, plus 3 more for each of the 8 corners, making 36.)
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Comments
shabz4lyf   
Oct 14, 2005
| Visualise indeed...wonderful!  |
AZTTT
Oct 14, 2005
| got me! I forgot the original ones.
 Nicely done.  |
trumpetsgirl 
Oct 14, 2005
| a exelltent math problom. i really liked this one. right up my alley keep em coming |
Therulerofthem  
Oct 14, 2005
| This may sound dumb, but congrats man, this was the 9000th teaser accepted. |
redraptor50
Oct 14, 2005
| Great one again fishmed, I just thought of cutting a square cheese cake Keep them coming |
brainster 
Oct 15, 2005
| hey cool, i actually worked it out ! good one !  |
stil
Jan 04, 2007
| Unless the slicing goes as far as the middle of the sides. Then the old 12 edges are replaced by the 24 new ones. |
javaguru
Jan 05, 2009
| I was thinking the same thing as Stil. It was pretty obvious what answer you were looking for, but the wording of the teaser left a number of other possibilites open. |
SRB_1807
Aug 18, 2011
| good one .... |
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