Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 22 May 2017, 09:18

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# For any triangle in the xy-coordinate plane, the center of T

Author Message
Manager
Joined: 25 Feb 2008
Posts: 53
Followers: 0

Kudos [?]: 14 [0], given: 0

For any triangle in the xy-coordinate plane, the center of T [#permalink]

### Show Tags

12 Jun 2008, 12:23
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

For any triangle in the xy-coordinate plane, the center of T is defined to be the point whose x-coordinate in the average(mean) of the x-coordinate of the vertices of T and whose y-coordinate in the average of the y-coordinate of the vertices of T. If a certain triangle has vertices at the points(0,0) and (6,0) and center at point(3,2) what are the coordinates of the remaining vertex?
3, 4
3, 6
4, 9
6, 4
9, 6

Manager
Joined: 20 Mar 2008
Posts: 157
Location: USA
Followers: 2

Kudos [?]: 50 [1] , given: 0

### Show Tags

12 Jun 2008, 12:42
1
KUDOS
B(3,6)

Mean of (0,0) , (6,0) & (x,y) is (3,2)

(0+6+x)/3=3 => x=3
(0+0+y)/3=2 => y=6
Senior Manager
Joined: 29 Aug 2005
Posts: 276
Followers: 2

Kudos [?]: 60 [0], given: 0

### Show Tags

13 Jun 2008, 04:21
Capthan wrote:
For any triangle in the xy-coordinate plane, the center of T is defined to be the point whose x-coordinate in the average(mean) of the x-coordinate of the vertices of T and whose y-coordinate in the average of the y-coordinate of the vertices of T. If a certain triangle has vertices at the points(0,0) and (6,0) and center at point(3,2) what are the coordinates of the remaining vertex?
3, 4
3, 6
4, 9
6, 4
9, 6

mean of (0,0) and (6,0) and (x,y) is (3,2)
therefore
0+6+x/3 = 3 therefore x = 3
and
0+0+y/3 = 2 therefore y = 6

therefore point is (3,6)
_________________

The world is continuous, but the mind is discrete

Re: Triangle-Gmat prep   [#permalink] 13 Jun 2008, 04:21
Display posts from previous: Sort by