The Math Forum

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

Dividing a Circle into Eleven Pieces

Date: 03/03/2002 at 16:19:11
From: Sam Sterling
Subject: Circle divide

Show how you could divide a circle into 11 pieces using only four 
straight lines. I could only get to 10 pieces.

Thank you.

Date: 03/04/2002 at 10:46:03
From: Doctor Sarah
Subject: Re: Circle divide

Hi Sam - thanks for writing to Dr. Math.

See if this diagram helps you figure it out:


- Doctor Sarah, The Math Forum   
Associated Topics:
Middle School Conic Sections/Circles
Middle School 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.