Cylinders have no vertices since the entire object is rounded. Only objects in which two lines meet in the same planar are are considered to have vertices.
The form is not specified in the question so it is hard to tell. But two parabolas with different vertices can certainly have the same axis of symmetry.
2 faces can't share the same face, and they cannot share ALL vertices and edges either
Those would be called similar solids.
"Vertices" means "vertexes". "Vertex" means one of the triangle's points. The triangle has three points. When you talk about two or three of them, you're talking about 2 or 3 'vertices'.
Opposite vertices are two vertices of any polygon with an even number of sides that have the same number of sides between them.
A triangle is the simplest polygon with three vertices and 3 sides. A dodecahedron has 12 vertices and 12 sides. There is no limit to the number of vertices and sides that a polygon can have - except that the two numbers must be the same.
Cylinders have no vertices since the entire object is rounded. Only objects in which two lines meet in the same planar are are considered to have vertices.
The form is not specified in the question so it is hard to tell. But two parabolas with different vertices can certainly have the same axis of symmetry.
2 faces can't share the same face, and they cannot share ALL vertices and edges either
Those would be called similar solids.
cube and cuboid
There are 2606 distinct convex nonahedrons with varying numbers of vertices, such as Johnson solid #14 (a triangular prism sandwiched between two pyramids) which has 8, and the heptagonal prism with 14. Concave solids could have even more!
A triangle is the simplest polygon with three vertices and 3 sides. A dodecahedron has 12 vertices and 12 sides. There is no limit to the number of vertices and sides that a polygon can have - except that the two numbers must be the same.
Rectangular prism Cube
"Vertices" means "vertexes". "Vertex" means one of the triangle's points. The triangle has three points. When you talk about two or three of them, you're talking about 2 or 3 'vertices'.
A cube and a rectangular prism.