Wikipedia:Reference desk/Archives/Mathematics/2021 April 24

= April 24 =

Constructable Distances
Starting with a line segment of length 1, what is the easiest way to describe the possible distances that can be constructed with compass and straight edge?Naraht (talk) 16:59, 24 April 2021 (UTC)


 * These are known as the "constructible numbers". The article gives several characterizations. One of the simplest (IMO) is given by the first paragraph of the section . It can slightly be simplified by not mentioning 0, since 0 is already included by subtracting 1 from itself. --Lambiam 17:11, 24 April 2021 (UTC)