A regular polygon has equal sides and angles. A polygon has a surface area but a polyhedron has many faces as for example a pyramid.
A polygon with 20 sides is an icosagon.
yes it is because its faces are pentagons so it is a polygon
you add up the areas of all the faces on the polygon.
An internal angle of the polygon.
Faces.
1
a cube
A square polygon by definition has one face and it is square.
A cube is a polyhedron because it has many faces while a square is a polygon
quadrilateral is a polygon with four sides or edges and four vertices or corners A pyramid is a solid figure with a polygonal base and triangular faces that meet at a common point. So no.
A polygon with four sides and four angles is a quadrilateral.