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Query pl

This topic has 2 expert replies and 0 member replies
Nijo Senior | Next Rank: 100 Posts Default Avatar
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Posted:
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Query pl

Post Fri Aug 15, 2014 8:34 pm
Which of the following lists number of points at which a circle can intersect a triangle?
1) 2,6
2) 2,4,6
3) 1,2,3,6
4) 1,2,3,4,6
5) 1,2,3,4,5,6

Will post OA later

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Post Sat Aug 16, 2014 2:41 am
Quote:
Which of the following lists the number of points at which a circle can intersect a triangle?

1. 2 and 6 only
2. 2, 4, and 6 only
3. 1, 2, 3, and 6 only
4. 1, 2, 3, 4, and 6 only
5. 1, 2, 3, 4, 5, and 6
Notice how the answer choices DIFFER.
Only E states that the circle and the triangle can intersect at 5 points.
If it's possible for there to be 5 intersections, A, B, C and D can be eliminated.

ttp://postimage.org/image/py3kwb50/" target="_blank">

Since 5 intersections are possible, eliminate A, B, C and D.

The correct answer is E.

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GMAT/MBA Expert

Post Fri Aug 15, 2014 8:58 pm
Quote:
Which of the following lists the number of points at which a circle can intersect a triangle?

(a) 2 and 6 only
(b) 2, 4, and 6 only
(c) 1, 2, 3, and 6 only
(d) 1, 2, 3, 4, and 6 only
(e) 1, 2, 3, 4, 5, and 6
ttp://postimg.org/image/531tmnqpr/" target="_blank">
Answer: E

The important takeaway here is that "intersect" does not necessarily mean "pass through"
So, a line that is tangent to a circle (touching the circle but not passing through it) can be said to intersect the circle. To intersect is to share a common point.

Cheers,
Brent

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