No. Vertices are points. They have no length and so cannot have lines.
Yes. Sometimes it's good to think outside of the square. Lines of latitude on the Earth's surface are curved lines. They meet at two vertices which we call the North Pole and the South Pole. But even in Euclidean Geometry, the answer is yes. Consider a circle and a parabola. The point where they intersect is a vertex.
Lines that is curved. E.G the outline of a circle.
sphere.
None, they have vertices.
An egg.
The cube have: -- six (6) faces -- twelve (12) edges -- zero (0) curved surfaces -- eight (8) vertices
No. A triangle is a closed shape made of three straight lines, joined at their endpoints forming three vertices and three angles (hence tri-angle).
There are two plane faces and a curved face, two edges and no vertices.
A cone has a curved base edge and 1 vertex
The solid you are describing is called a cylinder. It has two circular faces, one curved face, and no vertices.
Vertices are points (corners) and edges are lines that connect vertices
In 2 dimensional space, a vertex is formed when two lines meet at an angle. In 3D space, a vertex is a point where three or more faces meet.A sphere is not an arced line but is one curved surface. It has no vertex.