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

 Triangular Cubes (Posted on 2004-12-04)

Three points have been chosen randomly from the vertices of a cube. What is the probability that they form (a) an acute triangle; (b) a right triangle?

 See The Solution Submitted by Erik O. Rating: 3.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 i c it this way | Comment 4 of 11 |
B) 3/7 : ON EACH SIDE THERE ARE 4 POSSIBLE RIGHT ANGLED TRIANGLES, TOTAL=24
DIViDE BY 56 POSSIBLE 24/56= 3/7
A) THE REST IS ACUTE i.e. 4/7

am i wrong???
ady
 Posted by Ady TZIDON on 2004-12-05 07:53:06
Please log in:
 Login: Password: Remember me: Sign up! | Forgot password

 Search: Search body:
Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information