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Can someone help me with this one.. ?

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Senior Manager
Senior Manager
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Joined: 25 Jun 2009
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Kudos [?]: 90 [0], given: 6

Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 00:17
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
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Please help !
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Joined: 20 Jul 2009
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Location: Africa/Europe
Schools: Kellogg; Ross ($$); Tuck
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Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 02:14
IMO C

1) and 2) are insufficient alone.
Both we have r° = s° ==> the triangle is an equilateral one.
Attachment:
triangle.GIF
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no need to argue....
Senior Manager
Senior Manager
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Joined: 25 Jun 2009
Posts: 308
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Kudos [?]: 90 [0], given: 6

Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 02:32
madeinafrica wrote:
IMO C

1) and 2) are insufficient alone.
Both we have r° = s° ==> the triangle is an equilateral one.
Attachment:
triangle.GIF


no need to argue....


When r=s; can you explain how this triangle becomes an equilateral one ?
Current Student
avatar
Affiliations: ?
Joined: 20 Jul 2009
Posts: 191
Location: Africa/Europe
Schools: Kellogg; Ross ($$); Tuck
Followers: 2

Kudos [?]: 31 [0], given: 6

Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 02:36
in the figure, I can see s°, s° and r° as the angles of the triangle.
if s°=r° we have all three angle of the triangle that rare equals. so s=r=180/3=60.

an equilateral triangle is one that has 60° for each angle.
Senior Manager
Senior Manager
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Joined: 25 Jun 2009
Posts: 308
Followers: 2

Kudos [?]: 90 [0], given: 6

Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 02:43
madeinafrica wrote:
in the figure, I can see s°, s° and r° as the angles of the triangle.
if s°=r° we have all three angle of the triangle that rare equals. so s=r=180/3=60.

an equilateral triangle is one that has 60° for each angle.



My bad , I misread r as y and was confused all this while. Thanks !
Re: Can someone help me with this one.. ?   [#permalink] 28 Jul 2009, 02:43
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