To make a rectangualr pyramid,you need a rectangle for the base, and four triangles on the sides.
A triangle and a square
identify 3-dimensional shapes? cone,prism,,pyramid,cylinder,and sphere?
pyramid
A rectangular solid is 3-dimensional, but I'm assuming you mean a 2-dimensional representation of a rectangular solid, which is called a net. Do a search for the following: "net rectangular prism" and you will see a drawing of it.
To make a rectangualr pyramid,you need a rectangle for the base, and four triangles on the sides.
A triangle and a square
identify 3-dimensional shapes? cone,prism,,pyramid,cylinder,and sphere?
pyramid
A rectangular solid is 3-dimensional, but I'm assuming you mean a 2-dimensional representation of a rectangular solid, which is called a net. Do a search for the following: "net rectangular prism" and you will see a drawing of it.
6 rectangles
A square is a 2 dimensional shape, but it can be divided into 2 or more triangles, or more smaller squares, or hexagons and triangles, or octagons and triangles, or really any rectilinear figure and triangles. If you mean what two dimensional shapes can compromise the surface of a cube, or rectangular prism, then you want squares. if you mean what 1 dimensional figures can make the perimeter of a square, then you want lines (straight lines).
triangle and circle
octogons
pyramid, tv, planes on a cordinate um........................................... i don't know
None. A polyhedron is 3 dimensional and you cannot make a 2 dimensional shape out of 3D shapes.
A polygon with n sides, and n triangles, where n ≥ 3. Most commonly, the polygon at the base is a triangle or a square. If the base polygon is regular and the pyramid is a right pyramid (ie apex above the centre of the basal polygon), the triangles will be isosceles.