Twelve. The number of sides and vertices in a polygon are always the same.
It will have 12 sides
Yes, such a polygon is called a triangle.
A twelve sided polygon is called a dodecagon.
A octagon
Twelve. The number of sides and vertices in a polygon are always the same.
12 sides, 12 angles, 12 vertices
It will have 12 sides
24 vertices
Yes, such a polygon is called a triangle.
A twelve sided polygon is called a dodecagon.
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.
A octagon
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