Geometrical Puzzles


Step Through:  
    Rays Through the Squares   Acute Dissection  


Hole in the Sphere
by Samuel I. Jones*

A cylindrical hole six inches long has been drilled straight through the center of a solid sphere - just as shown in the illustration.

The question is what is the volume remaining in the sphere?


file size
184 KB
Download PDF Print 'n' Play version

*Martin Gardner has found the earliest reference for this problem in Samuel I. Jones's Mathematical Nuts, self-published, Nashville, 1932.

Get Adobe Reader


To print out PDF Print 'n' Play version of this puzzle, please download the latest version of the Adobe Reader.

Get Macromedia Flash Player

To ensure the best  Internet Experience, please download the latest version of the  Macromedia Flash Player

Last Update
December 7, 2003

< Home   |   Our Privacy Policy   |   About Puzzles.COM   |   Link to Us
Copyright 2003 ThinkFun Inc. All Rights Reserved.   Contact Us