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

Home > General
Moving Furniture (Posted on 2004-08-30) Difficulty: 2 of 5
An interior designer has a dilemma. She has to move an amazingly heavy armchair which is up against a wall. The chair needs to be sitting so it is exactly beside its starting position and facing the same way.

If the only possible movement is to rotate the chair on any of its corners, how can the chair be moved to its new position?

See The Solution Submitted by Brian Smith    
Rating: 2.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Solution solution | Comment 2 of 7 |

This will take only three rotations:

1. Take an imaginary line perpendicular to the wall that goes through the center of where the chair will be.

2. Rotate upon the leg (A) that's away from the wall and nearest this imaginary line until the other leg (B) that's away from the wall is on the imaginary line (120-degree rotation).

3. Rotate A about B until it's the same distance from the wall as it was before (60-degree rotation).

4. Rotate B about A until the back of the chair is against the wall (60-degree rotation).


  Posted by Charlie on 2004-08-30 14:06:16
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 (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information