Math Is Fun Forum

george

Guest

Please could you show me how to find the centre of circle only diviter

Please could you show me how to find the centre of circle only diviters

Ricky

Moderator

Registered: 2005-12-04

Posts: 3,791

Re: Please could you show me how to find the centre of circle only diviter

If you have 2 dividers, the point where they intersect must be the center of the circle.  This is because all dividers must travel through the center of the circle.

---

"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

liuv

Member

Registered: 2006-05-14

Posts: 29

Re: Please could you show me how to find the centre of circle only diviter

en..Draw a straight line AB through the circle at random, and bisect it at the point I. Draw DI from I at right angles to AB, and draw it through to C. Bisect CD at O. point O is the center.:)
or
Draw a straight line AB through the circle at random, and bisect it at the point I.Draw a straight line EF through the circle at random, and bisect it at the point J. Draw a straight line CID at right angles to AB.Draw a straight line  GJH at right angles to EF.
point O is the center.:D

Last edited by liuv (2006-05-18 20:21:38)

---

I'm from Beijing China.

krassi_holmz

Real Member

Registered: 2005-12-02

Posts: 1,905

Re: Please could you show me how to find the centre of circle only diviter

Yes. Good liuv!!!

---

IPBLE:  Increasing Performance By Lowering Expectations.