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# Can someone help me with this one.. ?

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Senior Manager
Joined: 25 Jun 2009
Posts: 306
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Kudos [?]: 120 [0], given: 6

Can someone help me with this one.. ? [#permalink]

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28 Jul 2009, 00:17
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Current Student
Affiliations: ?
Joined: 20 Jul 2009
Posts: 191
Location: Africa/Europe
Schools: Kellogg; Ross ($$); Tuck Followers: 2 Kudos [?]: 33 [0], given: 6 Re: Can someone help me with this one.. ? [#permalink] ### Show Tags 28 Jul 2009, 02:14 IMO C 1) and 2) are insufficient alone. Both we have r° = s° ==> the triangle is an equilateral one. Attachment: triangle.GIF [ 4.28 KiB | Viewed 793 times ] no need to argue.... Senior Manager Joined: 25 Jun 2009 Posts: 306 Followers: 2 Kudos [?]: 120 [0], given: 6 Re: Can someone help me with this one.. ? [#permalink] ### Show Tags 28 Jul 2009, 02:32 madeinafrica wrote: IMO C 1) and 2) are insufficient alone. Both we have r° = s° ==> the triangle is an equilateral one. Attachment: triangle.GIF no need to argue.... When r=s; can you explain how this triangle becomes an equilateral one ? Current Student Affiliations: ? Joined: 20 Jul 2009 Posts: 191 Location: Africa/Europe Schools: Kellogg; Ross ($$); Tuck
Followers: 2

Kudos [?]: 33 [0], given: 6

Re: Can someone help me with this one.. ? [#permalink]

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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
Joined: 25 Jun 2009
Posts: 306
Followers: 2

Kudos [?]: 120 [0], given: 6

Re: Can someone help me with this one.. ? [#permalink]

### Show Tags

28 Jul 2009, 02:43
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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