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Can someone help me with this one.. ?

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Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 01:17
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Please help !
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Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 03:14
IMO C

1) and 2) are insufficient alone.
Both we have r° = s° ==> the triangle is an equilateral one.
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no need to argue....
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Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 03:32
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 ?
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Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 03:36
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.
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Re: Can someone help me with this one.. ? [#permalink] New post 28 Jul 2009, 03:43
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, 03:43
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