It can be any 2-dimensional figure.
It is a three dimensional figure of some sort.
A figure made with triangles, quadrilaterals, and other two-dimensional shapes is commonly referred to as a polygon. More specifically, if it consists of multiple polygons combined, it can be termed a composite figure or a compound shape. These figures can be analyzed in terms of their perimeter, area, and other geometric properties.
a star
A regular tetrahedron
yes
They are called polygons
A Snow Man!!
It is a three dimensional figure of some sort.
a star
A regular tetrahedron
yes
A triangulare prism
Spatial figure is a three dimensional figure. It is made up of plane figure whose all sides are joined together to form a close figure
Cartesian coordinate system
A sphere.
There are infinitely many different plane figures that can be made up of 2-dimensional shapes - provided that they are all in the same plane. There cannot be any 3-dimensional shapes involved.
A polyhedron is a three dimensional figure made up of sides called faces, where each face is a polygon.