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

Home > Just Math > Calculus
Three circles (Posted on 2010-09-09) Difficulty: 4 of 5
Given three concentric (having the same center) circles. Their radii are 1,2 and 3.
Place three points A,B,C - each on a different circle to get a triangle ABC with a maximal area.

What is this area?

No Solution Yet Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Another approach (spoiler) Comment 3 of 3 |
(In reply to Another approach (spoiler) by Harry)

my solution has a slight mistake.  To compute the area of the triangle I used the coordinate matrix formula and in doing so forgot the 1/2 times the determinant and thus the reason why my area is twice yours. 
  Posted by Daniel on 2010-09-11 22:37:01

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 (8)
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