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Home > Shapes
Puzzles involving various geometric shapes, in a flat plane and in three-dimensional space.
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Prove, that if a given rectangle can be covered by 100 circles each of r=2, then it can
be covered by 400 circles each of r=1.
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 Isosceles from Regular | Rating: 5.00 Posted on 2012-01-20 by Jer (No Solution Yet, 13 Comments)Another folded paper | Posted on 2012-01-03 by Jer (No Solution Yet, 1 Comments)  Latin Colors | Posted on 2011-10-26 by Charlie (Solution Posted, 3 Comments)Painted Tetrahedra | Posted on 2011-08-22 by Charlie (Solution Posted, 5 Comments) Train track shapes | Posted on 2011-08-01 by Jer (Solution Posted, 2 Comments) Gold inside | Rating: 3.00 Posted on 2011-06-29 by brianjn (No Solution Yet, 0 Comments)  Cover-up | Rating: 4.50 Posted on 2011-06-23 by Ady TZIDON (Solution Posted, 4 Comments)Partition a Square | Posted on 2011-03-15 by Bractals (Solution Posted, 2 Comments) Penta_Full View | Posted on 2011-02-24 by brianjn (No Solution Yet, 0 Comments) Penta_View | Posted on 2011-02-17 by brianjn (No Solution Yet, 0 Comments) Around the ring | Rating: 3.00 Posted on 2010-12-20 by Jer (No Solution Yet, 8 Comments) Altered Parabolas | Posted on 2010-12-01 by Jer (Solution Posted, 2 Comments) Wrapped Loop | Posted on 2010-11-18 by brianjn (No Solution Yet, 0 Comments) Slide to Wrap Loop | Posted on 2010-11-09 by brianjn (No Solution Yet, 0 Comments) |
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