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# Triangle Easy one, but still want to check. whats the value

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CEO
Joined: 15 Aug 2003
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Triangle Easy one, but still want to check. whats the value [#permalink]  17 Dec 2003, 02:21
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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Triangle

Easy one, but still want to check.

whats the value of x?

1. z= x

2. y=x
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triangle.JPG [ 8 KiB | Viewed 481 times ]

Last edited by Praetorian on 17 Dec 2003, 06:27, edited 1 time in total.
CEO
Joined: 15 Aug 2003
Posts: 3469
Followers: 61

Kudos [?]: 701 [0], given: 781

stoolfi wrote:
Is there a question here?

sorry about that stoolfi..i have edited the post
Director
Joined: 13 Nov 2003
Posts: 793
Location: BULGARIA
Followers: 1

Kudos [?]: 27 [0], given: 0

Denote the internal angles at X with a , Y with b and Z with c. From St 1
1) z=x, or x=b+c, z=a+c =>a=b
2) y=x or a+b=b+c =>a=c ,
From 1) and 2) a=b=c,=> X=120┬░
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4313
Followers: 27

Kudos [?]: 216 [0], given: 0

The formula is
(180-x)+(180-y)+(180-z)=180
540-x-y-z=180
x+y+z=360
Thus 1 alone is not sufficient nor 2 alone is.
Both of them are sufficient though
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