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2. Napkin folding problem - Wikipedia

   en.wikipedia.org/wiki/Napkin_folding_problem

   The napkin folding problem is a problem in geometry and the mathematics of paper folding that explores whether folding a square or a rectangular napkin can increase its perimeter. The problem is known under several names, including the Margulis napkin problem, suggesting it is due to Grigory Margulis, and the Arnold's rouble problem referring ...

3. Mathematics of paper folding - Wikipedia

   en.wikipedia.org/wiki/Mathematics_of_paper_folding

   Mathematics of paper folding. Map folding for a 2×2 grid of squares: there are eight different ways to fold such a map along its creases. The discipline of origami or paper folding has received a considerable amount of mathematical study. Fields of interest include a given paper model's flat-foldability (whether the model can be flattened ...

4. Prepare for the big game with this best-selling folding table ...

   www.aol.com/lifestyle/walmart-folding-table-deal...

   Mainstays 4 Foot Fold-in-Half Adjustable Folding Table. $35 $40 Save $5. Useful for game day and beyond, this adjustable folding table can be pulled out whenever you need a little bit of extra ...

5. Folding table - Wikipedia

   en.wikipedia.org/wiki/Folding_table

   Folding table. General use Folding Table. A folding table is a type of folding furniture, a table with legs that fold up against the table top. This is intended to make storage more convenient and to make the table more portable. Many folding tables are made of lightweight materials to further increase portability.

6. Table (furniture) - Wikipedia

   en.wikipedia.org/wiki/Table_(furniture)

   Several geometries of folding table that can be collapsed into a smaller volume (e.g., a TV tray, which is a portable, folding table on a stand) Heights ranging up and down from the most common 18–30 inches (46–76 cm) range, often reflecting the height of chairs or bar stools used as seating for people making use of a table, as for eating ...

7. ISO 216 - Wikipedia

   en.wikipedia.org/wiki/ISO_216

   The geometric rationale for using the square root of 2 is to maintain the aspect ratio of each subsequent rectangle after cutting or folding an A-series sheet in half, perpendicular to the larger side. Given a rectangle with a longer side, x, and a shorter side, y, ensuring that its aspect ratio, ⁠ x / y ⁠, will be the same as that of a ...