Yes, such a polygon is called a triangle.
It is a dodecagon.
A tetrahedron, assuming the four vertices are not coplanar.
It is called a vertex (plural-vertices).
the point where two sides of a polygon meet are called vertices
8 angles and vertices
Yes, such a polygon is called a triangle.
A polygon with 5 sides/vertices is called a pentagon.
A line segment connecting two vertices of a polygon is called an edge if the vertices are adjacent to one another. Otherwise it is called a diagonal.
It is a dodecagon.
A tetrahedron, assuming the four vertices are not coplanar.
It is called a vertex (plural-vertices).
the point where two sides of a polygon meet are called vertices
The vertices are the "points" of a polygon.
A line segment in a polygon connecting any two nonconsecutive vertices is called a diagonal.
An hexagon has 6 vertices
its called a pentagon