How to Get Different Paper Shapes for Folding Origami Models

This is a collection of articles I found on the web, explaining how to acquire various shapes from squares and rectangles.

Article	Source
How to cut a perfect Square from odd-shaped paper [Video on YouTube]	Sara Adams
How to get a US $ bill from a Square
How to get an Equilateral Triangle from a Square
How to get an Equilateral Triangle from a Square [Video on YouTube]	Sara Adams
How to get a Letter-sized paper from a Rectangle [PDF]	Sy Chen
How to get a Letter-sized paper from a Square [PDF]	Sy Chen
How to get a silver rectangle (A size) from Letter-sized paper	Thoki Yenn
How to get a silver rectangle (A size) from a Long Rectangle	Thoki Yenn
How to get a silver rectangle (A size) from a Square with no extra creases	Jeff Rutzky
How to get a silver rectangle (A size) from a Square	Thoki Yenn
How to get a Golden Rectangle from Letter-sized paper	Thoki Yenn
How to get a Golden Rectangle from a Silver Rectangle	Thoki Yenn
How to get a Bronze Rectangle (1:sqrt 3) from a Square	Thoki Yenn
How to get a Square from a Rectangle	Rachel Katz
How to get a maximal Square from a US $ bill or Rectangle [PDF]	Sy Chen
How to get a Pentagon from a Square	Paula Beardell Krieg
How to get a Pentagon from a Square
How to get a Hexagon from a Square
How to get a Hexagon or an Octagon from a Square [PDF]	Ralf Konrad
How to get a Heptagon from a Square (different method)	Arnold Tubis
How to get an Octagon from a Square	Hyo Ahn
How to get an Octagon from a Square [Video on YouTube]	Sara Adams
How to get a Decagon (or Pentagon) from a Square [PDF]	Philip Chapman-Bell