perplexus.info :: Geometry : Boring, boring...

Boring, boring... (Posted on 2005-03-06)

You have a 3x3x3 cube. You bore a circular hole, of diameter 1, from the center of the top face to the center of the bottom face. You bore a similar hole from the left face center to the right face center, and another hole from front center to back center. How much material was removed?

Submitted by Federico Kereki

Rating: 4.3750 (8 votes)

Solution: (Hide)

http://www.gpj.connectfree.co.uk/gpjm.htm problem (63)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: Overcomplicated?	Charlie	2005-03-08 14:26:12
Overcomplicated?	TomM	2005-03-08 02:54:36
re(6): picture of the center	Charlie	2005-03-07 16:41:43
re(6): picture of the center	Charlie	2005-03-07 16:14:00
re(5): picture of the center	Charlie	2005-03-07 15:55:58
re(4): picture of the center	Hugo	2005-03-07 14:39:25
re(3): picture of the center	Charlie	2005-03-07 14:15:51
re(2): picture of the center	Charlie	2005-03-07 13:55:54
re: picture of the center	nj	2005-03-07 07:42:47
Monte Carlo approximation (numerical spoiler present)	Charlie	2005-03-06 17:42:42
re: picture of the center	Charlie	2005-03-06 17:11:48
thoughts	Charlie	2005-03-06 17:06:49
picture of the center	Charlie	2005-03-06 16:59:18

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