How to solve this GMAT test prep question

[karan.7045]

Which of the following lists the number of points at which a circle cn intersect a tringle
1)2 and 6 only
2)2,4 and 6 only
3)1,2,3 nd 6 only
4)1,2,3,4 and 6 only
5)1,2,3,4,5 and 6

[Matt@VeritasPrep]

The easiest way to solve this is to notice that only answer choice E has a 5 in it, then to try drawing a circle that intersects a triangle exactly 5 times. Since such a figure is possible (see below), the answer MUST be E, and you're done.

[Brent@GMATPrepNow]

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