Two points. These may coincide if the line is a tangent to the sphere.
A Vertex is the point of intersection, and a Perpendicular Vertex is a vertex with all 90 degree angles, to be specific.
a line
It's a line... on a sphere...
a bisecting line ? Diameter ______________ The question needs to be re-thought. Lines do not cut spheres in half, no matter where the line is in the sphere. The simplest thing that can cut a sphere in half would be a plane.
Two points. These may coincide if the line is a tangent to the sphere.
A line. When two planes intersect, their intersection is a line.
A line in Riemann's spherical geometry is called a great circle, which is the intersection of a sphere with a plane passing through its center. Great circles are the equivalent of straight lines in this non-Euclidean geometry.
A line.
an intersection
A Vertex is the point of intersection, and a Perpendicular Vertex is a vertex with all 90 degree angles, to be specific.
The coordinate plane is formed by the intersection of a vertical and a horizontal number line. What is the horizontal number line called?
a line
Intersection
the back boundary line, and the long service line
is called an edge.
Two planes that intersect are simply called a plane to plane intersection. When they intersect, the intersection point is simply called a line.