The Math Forum

Ask Dr. Math - Questions and Answers from our Archives
Associated Topics || Dr. Math Home || Search Dr. Math

Finding the Center of a Disk

Date: 12/13/2002 at 12:52:56
From: Kenneth Lentz
Subject: Find center of solid disk?

I need to find the center of a solid disk to bore a hole.

I tried three intersecting diameters at 60 degree arcs but this was 
not accurate enough (I'm not sure of the true diameters).

Date: 12/13/2002 at 15:12:00
From: Doctor Rick
Subject: Re: Find center of solid disk?

Hi, Kenneth.

Do you know this trick for finding a diameter of a circle? Take a 
carpenter's square and place it on the circle so the right angle is 
on the circumference of the circle and both legs of the square cross 
the circumference of the circle. Mark where each leg crosses the 
circumference, and connect these points - there is your diameter. 

- Doctor Rick, The Math Forum 

Date: 12/14/2002 at 15:05:41
From: Kenneth Lentz
Subject: Thank you (Find center of solid disk?)

Thanks for an easy solution!
Associated Topics:
High School Conic Sections/Circles
High School Geometry
High School Practical Geometry

Search the Dr. Math Library:

Find items containing (put spaces between keywords):
Click only once for faster results:

[ Choose "whole words" when searching for a word like age.]

all keywords, in any order at least one, that exact phrase
parts of words whole words

Submit your own question to Dr. Math

[Privacy Policy] [Terms of Use]

Math Forum Home || Math Library || Quick Reference || Math Forum Search

Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.