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

Home > Shapes > Geometry
I've Been Working... (Posted on 2004-01-07) Difficulty: 3 of 5
Between Massena and Anaheim there are two railroad tracks. One of them is straight and is 4 miles long. The other one is the arc of a circle and is 5 miles long.

What is the radius of curvature of the curved track?

No Solution Yet Submitted by DJ    
Rating: 4.0000 (7 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: First Steps | Comment 2 of 3 |
(In reply to First Steps by TomM)

A numeric solution for 5/R = 2(arcsin[2/R]) is R = 2.21023276908
  Posted by Brian Smith on 2004-01-07 11:17:58

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 (7)
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