It is a three dimensional figure of some sort.
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 regular tetrahedron
It can be any 2-dimensional figure.
polyhedron is often defined as a geometric object with flat faces and straight edges polygon is traditionally a plane figure that is bounded by a closed path or circuit, composed of a finite sequence of straight line segments (i.e., by a closed polygonal chain). .
It is a three dimensional figure of some sort.
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 regular tetrahedron
A triangulare prism
It can be any 2-dimensional figure.
Polyhedrons are three-dimensional shapes with flat faces, straight edges, and sharp corners, known as vertices. Examples of polyhedrons include cubes, pyramids, prisms, and dodecahedrons. These shapes have a closed surface and are made up of polygons, which are two-dimensional shapes with straight sides.
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
polyhedron is often defined as a geometric object with flat faces and straight edges polygon is traditionally a plane figure that is bounded by a closed path or circuit, composed of a finite sequence of straight line segments (i.e., by a closed polygonal chain). .
3-dimensional shapes made by extruding a polygon are called prisms.In this instance it would be a triangular prism.
A polyhedron is a three dimensional figure made up of sides called faces, where each face is a polygon.
Find the areas of the rectangles and triangles. Add them together.
A triangular pyramid is a tetrahedron, or a solid three-dimensional figure made up of four triangular faces.