cone
13 The correct answer is 12. From any one vertex, you can draw a diagonal to all but 3 vertices: the vertex itself and the next vertex on either side of your vertex (these would be sides of your shape, not diagonals).
The number of Diagonals in one vertex of a Triangle is 0 (zero)..
A cone has one circular base and a vertex that is not on the base.as described on math.com
A diagonal in a shape is a straight line from one vertex to another vertex (corner).
no. a sphere has no sides at all. no sides,no vertex.
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A sphere. All other solids, including cubes, rectangular prisms, and cones all have at least one vertex.
How about a sphere as an example that fits the given description
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.
sphere has 1 face and no vertex and it rolls but cone has 2 faces and it can roll and it has 1 vertex
cone
Perhaps a circle or a sphere
cylinder and sphere