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Nareshkumar j

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Dec 27, 2011, 11:11:35 AM12/27/11
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Q) an eqvilertal triangle is inscribed in a circle having the length
of the arc has 24. what is the diameter of the circle?


Guys iam not able to draw the scenario, please let me know how can we
answer for these kind of question. thanks

NEETHU

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Dec 27, 2011, 11:47:24 AM12/27/11
to gmat-t...@googlegroups.com, John Joseph
Just draw a simple triangle inside a circle.
image.png

Now arc ABC = 24 cms
equilateral triangle, ie. ABC is 2/3rd of the circle. Hence the perimeter of the circle = 36.
2*pi*r = 36. Find r. Thats it!!!

Thanks
Neethu



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image.png

Nareshkumar j

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Dec 27, 2011, 11:55:08 AM12/27/11
to GMAT Toppers
How you findout ABC is 2/3rd of the circle... is it a basic
definition?

On Dec 27, 9:47 pm, NEETHU <neethu86.tho...@gmail.com> wrote:
> Just draw a simple triangle inside a circle.
> [image: image.png]
>
> Now arc ABC = 24 cms
> equilateral triangle, ie. ABC is 2/3rd of the circle. Hence the perimeter
> of the circle = 36.
> 2*pi*r = 36. Find r. Thats it!!!
>
> Thanks
> Neethu
> a baisc
> On Tue, Dec 27, 2011 at 9:41 PM, Nareshkumar j <j.nareshkum...@gmail.com>wrote:
>
>
>
>
>
>
>
> > Q)  an eqvilertal triangle is inscribed in a circle having the length
> > of the arc has 24. what is the diameter of the circle?
>
> > Guys iam not able to draw the scenario, please let me know how can we
> > answer for these kind of question. thanks
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "GMAT Toppers" group.
> > To post to this group, send email to gmat-t...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > gmat-toppers...@googlegroups.com.
> > For more options, visit this group at
> >http://groups.google.com/group/gmat-toppers?hl=en.
>
>
>
>  image.png
> 11KViewDownload

NEETHU

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Dec 27, 2011, 12:01:33 PM12/27/11
to gmat-t...@googlegroups.com
Its an equilateral triangle!!..So basically it divides the circle in to 3 arcs - AB, BC and AC. 

Arc ABC = arc AB+ arc AC. 

Got?

NEETHU

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Dec 27, 2011, 12:02:07 PM12/27/11
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Correction :  Arc ABC = arc AB+ arc BC.  

Nareshkumar j

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Dec 27, 2011, 10:04:13 PM12/27/11
to GMAT Toppers
Ya got it!!!! thank u

On Dec 27, 10:02 pm, NEETHU <neethu86.tho...@gmail.com> wrote:
> Correction :  Arc ABC = arc AB+ arc BC.
>
>
>
>
>
>
>
> On Tue, Dec 27, 2011 at 10:31 PM, NEETHU <neethu86.tho...@gmail.com> wrote:
> > Its an equilateral triangle!!..So basically it divides the circle in to 3
> > arcs - AB, BC and AC.
>
> > Arc ABC = arc AB+ arc AC.
>
> > Got?
>
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