Cross Section
A Circle.
a square
A parabola is the figure formed by the intersection of a circular cone and a plane that lies parallel to the edge of the cone. (the cone does not have to be a right [90°] circular cone).
When a line intersects a plane and does not lie in the plane, the intersection forms a single point. This point is where the line crosses the plane. If the line is parallel to the plane, however, there will be no intersection point.
The intersection of a line and a plane can result in either a single point, if the line passes through the plane, or no intersection at all if the line is parallel to the plane and does not touch it. In some cases, if the line lies entirely within the plane, every point on the line will be an intersection point. Thus, the nature of the intersection depends on the relative positions of the line and the plane.
It is the cross-section of the figure by the plane.
That thing.
A Circle.
the figure defined by intersection of a cone and a plane.
the figure defined by intersection of a cone and a plane.
cross section
the figure defined by intersection of a cone and a plane.
the figure defined by intersection of a cone and a plane.
square
a square
A parabola is the figure formed by the intersection of a circular cone and a plane that lies parallel to the edge of the cone. (the cone does not have to be a right [90°] circular cone).
a polygon a polygon * * * * * No it is not! If the line is in that plane then it is the whole line. If not, it is a single point.