All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Shapes > Geometry
Can rationalization help? (Posted on 2019-03-05) Difficulty: 3 of 5
How would you divide a line segment in the ratio 2 - √3 : 2 + √3 using only a compass and straightedge?

No Solution Yet Submitted by Danish Ahmed Khan    
No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution Solution | Comment 1 of 2
Call the segment AE.  Bisect the segment and call the midpoint C. Bisect AC and CE.  Then we have 5 points ABCDE.  Call the spacing between them 1 unit.

Draw circles at E containing D and D containing E.  Call one of their intersections X.   CX=√3.

Draw the circle at C containing X.  This intersects the segment at Y.

AY= 2 + √3and YE=2 - √3


  Posted by Jer on 2019-03-05 09:49:34
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (0)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information