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# Problem + figure is in the attachment

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Senior Manager
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Problem + figure is in the attachment [#permalink]  18 Feb 2008, 18:50
Problem + figure is in the attachment:
Attachments

gmatprep1- Arc Length.doc [63 KiB]

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Senior Manager
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Re: GMATPrep: Lenght of minor arc [#permalink]  18 Feb 2008, 19:18
A

Given that ORP = 35
Assuming X as center, in the traingle XPR, angle XPR = 35 because it's got both sides equal (which is radius)
that makes angle XPQ = 70 and the angle of the arc, PXQ = 40
that makes the lenght of arc 2pi
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Re: GMATPrep: Lenght of minor arc [#permalink]  18 Feb 2008, 19:31
Beautiful....

I really need to start flexing my brain muscles....should have thought of this approach during the test....
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Re: GMATPrep: Lenght of minor arc [#permalink]  18 Feb 2008, 19:34
1
KUDOS
neelesh wrote:
Beautiful....

I really need to start flexing my brain muscles....should have thought of this approach during the test....

you know, it took me longer than I could afford in the exam though.
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Re: GMATPrep: Lenght of minor arc [#permalink]  18 Feb 2008, 19:40
Yup me too...I drew all the lines possible in the figure, but didn't look at XP and XR at the same time to realize that this angle will also be 35......spent a lot of time and even then could not figure out..

Good job man...

+1 for you...
Re: GMATPrep: Lenght of minor arc   [#permalink] 18 Feb 2008, 19:40
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