Plese show how it is possible for two triangles to intersect in one point, two points, etc, but NOT in seven, eight, nine...points.

To understand how triangles can intersect in different numbers of points, let's first start with the basics. Triangles are two-dimensional geometric shapes with three sides and three angles. When we say triangles intersect, we are referring to the points where their sides or boundaries meet.

1. Intersection in one point: Two triangles can intersect in only one point if one triangle is entirely contained within the other. This happens when one triangle is smaller and positioned exactly inside the larger triangle. In this scenario, the two triangles share a common vertex, resulting in a single point of intersection.

2. Intersection in two points: When two triangles intersect in two points, it means that they share a common side. Two of their sides overlap, creating two points where the triangles interact.

3. Intersection in three points: The intersection of two triangles in three points is the most common scenario. It occurs when the two triangles overlap partially, sharing portions of their sides and angles. The three points of intersection can be vertices, sides, or a combination of both.

4. Intersection in more than three points: Here's where it gets interesting. It is not possible for two triangles to intersect in exactly seven, eight, nine, and so on points. This is due to the nature of triangles and the maximum number of points of intersection they can form.

In general, if two triangles intersect in seven or more points, it means they are essentially overlapping or coinciding with each other. Considering triangles have only three sides and three angles, they cannot have that many points of intersection while still maintaining their basic triangle shape.

To summarize, two triangles can intersect in one point (when one triangle is inside the other), two points (when they share a side), three points (partial overlap), but not in seven, eight, nine, and so on points, as it violates the characteristics of triangles.