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

Home > Shapes
3D Engineering problem (Posted on 2006-08-02) Difficulty: 3 of 5
1. What 3D objects are represented by a pair of concentric circles in its plan (viewed from above) and a pair of concentric circles for its front elevation (vertical face)?

2. What would a #1 object be if it also has a side elevation that is concentric squares [with corner diagonals]?

No Solution Yet Submitted by Salil    
Rating: 4.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Number 1 Solution | Comment 13 of 16 |
(In reply to re: Number 1 Solution by brianjn)

It may not be the intended solution, but a sphere with a concentric spherical void does indeed meet the conditions of part 1.

In fact, if viewed from ANY elevation (with hidden lines allowed/included) the result would be two concentric circles.


By the way, the correct technical name for this method of 2D veiwng of 3D objects is called Orthogrphic Projection.  Any 3D object can be 100% described by 3 orthogonal such views.

Edited on August 19, 2006, 9:12 pm
  Posted by Kenny M on 2006-08-19 21:11:40

Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (4)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information