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.
No, it's a line
Yes.
If you mean "only one plane can pass through another plane and through a point that is not on the line formed by the intersection of the two planes," the answer is "no." If you rotate the plane about the point, it will still intersect the line unless it is parallel to the line. By rotating the plane, you have created other planes that pass through the unmoved plane and through the point that is not on the line formed by the intersection of the two planes.
The intersection of a sphere with a plane is a point, or a circle.
If the line is not IN the plane ... it just zaps through the plane from some direction ... then it touches the plane in only one point. The intersection is a point.if it is lined up with the plane, then the intersection is a line.
point * * * * * or, nothing (if the line is parallel to the plane).
Unless the line is a subset of the plane, the intersection is a point.
A point.
A point.
The intersection of two lines is always a point or the line itself. The intersection of a line with plane also the same as above.
No. It can be the whole line.
point
over 900000000000
In most cases, in a single point. It is also possible that there is no intersection, or that the intersection is the entire line.
another point
Two parallel lines, a plane and a line in a plane parallel to it.