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# Which of the following lists the number of points at which a

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Senior Manager
Joined: 05 Oct 2008
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Kudos [?]: 135 [0], given: 22

Which of the following lists the number of points at which a [#permalink]  08 Nov 2008, 03:36
Which of the following lists the number of points at which a circle can intersect a triangle?

2, 6
2,4, 6
1,2,3,6
1,2,3,4,6
1,2,3,4,5,6
Intern
Joined: 07 Nov 2008
Posts: 32
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Re: Circle [#permalink]  08 Nov 2008, 04:21
what are these lists of numbers?
points in rectangular coordinate?
Intern
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Re: Circle [#permalink]  08 Nov 2008, 05:38
A circle can intersect a triangle at a max of 6 points.

Refer to the picture.

VP
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Re: Circle [#permalink]  08 Nov 2008, 09:09
Senior Manager
Joined: 05 Oct 2008
Posts: 272
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Kudos [?]: 135 [0], given: 22

Re: Circle [#permalink]  08 Nov 2008, 10:53
I candy thanks for the link. I did go through it. It doesn't provide the best solution, as tangent is not the same as intersect? And hence wanted some more thoughts on the problem. Any idea?
VP
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Re: Circle [#permalink]  08 Nov 2008, 11:01
from wikipedia : A tangent line t to a circle C intersects the circle at a single point T.

I considered tangent as a line that does not intersect, but apparently I was wrong and hence my solution was wrong.
Re: Circle   [#permalink] 08 Nov 2008, 11:01
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