They are called adjacent angles.
adjacent
If they are in the same plane, then they share a common plane. Did you mean to say common point. If that's the case where they are in the same plane, but do not share a common point, then they are parallel lines.
Yes, and a common side too.
isosceles triangle
Adjacent angles.
adjacent angles
adjacent
adjacent angles.
Adjacent angles
The Common Vertex is the place where multiple vertices meet in the same spot on their vertices.
Spiral
ya
If they are in the same plane, then they share a common plane. Did you mean to say common point. If that's the case where they are in the same plane, but do not share a common point, then they are parallel lines.
pyramid and coneIn the list given, only the cone and pyramid have a vertex.
Yes, and a common side too.
isosceles triangle
adjacent