A vertex
It is a vertex which is a corner of a polygon
diagonal
It is a 'corner' of a polygon.
It is called a vertex (plural-vertices).
The word corner is actually not a defined term in mathematics. Many people refer to the vertex as a corner and many say corner and mean the vertex and the sides near it.
A vertex
It is a vertex which is a corner of a polygon
diagonal
angle
Cone
It is a 'corner' of a polygon.
On a protractor and at each corner (vertex) of the polygon.
it is called a ...
The geometrical word for the corner of a polygon is its vertex of which the plural is vertices.
The term "polygon" refers to flat surfaces - surface on a plane.The term "polygon" refers to flat surfaces - surface on a plane.The term "polygon" refers to flat surfaces - surface on a plane.The term "polygon" refers to flat surfaces - surface on a plane.
A vertex and its plural is vertices