QuestionA plane intersects a double-napped cone to form a circle. Assume the plane moves parallel to its original position. Describe what happens to the circle that is formed when the plane moves further away from the vertex.
The radius of the circle decreases so the circle is smaller The radius of the circle increases so the circle is larger The radius of the circle becomes infinitely small the circle disappears The radius of the circle becomes infinitely small so a point is formed