Math Trick QuestionDate: 02/02/2005 at 00:01:55 From: Hastings Subject: I am a teacher and my students have asked me this. How do I draw a square using only 3 lines? Date: 02/02/2005 at 12:48:36 From: Doctor Douglas Subject: Re: I am a teacher and my students have asked me this. Hi Hastings. Surely it's a trick question, perhaps involving folding the paper or turning it underneath the pencil, etc. Or, here's another twist: A /| DA, AB, and BC are the three lines. / | and "4", of course, is the square: 4 = 2*2. / | B---+-C The same idea works for "1" as well. | D - Doctor Douglas, The Math Forum http://mathforum.org/dr.math/ |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994-2013 The Math Forum
http://mathforum.org/dr.math/