Drexel dragonThe Math ForumDonate to the Math Forum


Math Forum
 Ask Dr. Math
 Discussions
 Internet Newsletter
 MathTools
 Problems of the Week
 Teacher2Teacher
 Teacher Exchange
 Workshops

Search All of the Math Forum:
Browse our Internet Mathematics Library

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.


Math Forum » Discussions » Math Topics » geometry.puzzles.independent

Topic: The diameter of a chips box
Replies: 2   Last Post: Jan 30, 2013 4:38 PM

Advanced Search
Reply to this Topic Reply to this Topic

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ] Topics: [ Previous | Next ]
Avni Pllana

Posts: 546
Registered: 12/6/04
Re: The diameter of a chips box
Posted: Jan 30, 2013 4:38 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

> (Assuming the chip-box is circular)
>
> The circumference is 2.
> Circumference = 2 * pi * radius, so
> 2 = 2 * pi * radius, so
> radius = 1/pi
> therefore the diameter = 2* radius = 2/pi

Hi Cadman,

your assumption that the chip-box i circular is not correct.
It is very easy to construct it from a sheet of paper, and see that the chip-box is not circular, it is even not elliptic.
The solution is simple, but not quite straightforward.

Best regards,
Avni

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2016. All Rights Reserved.