Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

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


Math Forum » Discussions » Math Topics » geometry.pre-college.independent

Topic: Identifying a curve
Replies: 4   Last Post: Jan 11, 2008 4:58 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
K. E. Pledger

Posts: 1,235
Registered: 12/3/04
Re: Identifying a curve
Posted: Jan 10, 2008 5:13 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

> Suppose you drew a circle of radius 200 mm on a piece
> of paper with a compass and keeping the same centre
> point you moved the pencil point in at five mm
> increments so as to create ten circles each five mm
> less radius to the one outside of it. Now you also
> draw ten straight lines ( running up the page as it
> were ) each five mm apart and position these lines so
> as they cut through the circles with the extreme left
> line being tangential with the inner circle and the
> extreme right line being 45 mm to the right and of
> course 45mm nearer the centre point of the circle.
> What you end up with is a series of intersections
> that when you connect with a line forms a curve.


You seem to end up with 199 intersections. How do you intend to put a curve through them?

Ken Pledger.



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

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.