There are infinitely many possible answers to the question. The question needs to be more specific.
A solid figure that has some of the same faces but some different faces, and has one more face than the other, is a prism and a pyramid. A prism has two identical bases and rectangular or square faces, while a pyramid has a polygonal base and triangular faces that meet at a single point, called the apex. The prism has one more face than the pyramid.
No, because if the laterals would be rectanguar, the figure will have 4 lateral vertices which in other terms, the figure wont be a pyramid. The base can be a rectangle but the laterals figures must be of 3 sides
There is no general rule. There are different formulae for simple figures like a sphere, a cone and a cylinder. Other figures have yet other and more complex formulae.
There are infinitely many spatial figures and it is not possible to give a comprehensive answer. For a partial answer, see the following link. However, the link is concerned only with polyhedra. There are other spatial figures - like spheres and ellipsoid etc.
A tetrahedron (4 triangular faces) is the only polyhedron that has a unique configuration of faces, edges and vertices. For any polyhedron with n (>4) faces, there is a prism with a pair of n-2 sided polygons as bases as well a pyramid whose base is an n-1 sided polygon. There are many other configurations for polyhedra with more faces. For example, there are ten [topologically] different figures with 6 faces: 3 of these are concave polyhedra.
If its for a rectangle, multiply length x width. Other figures have different formulae.If its for a rectangle, multiply length x width. Other figures have different formulae.If its for a rectangle, multiply length x width. Other figures have different formulae.If its for a rectangle, multiply length x width. Other figures have different formulae.
No, because if the laterals would be rectanguar, the figure will have 4 lateral vertices which in other terms, the figure wont be a pyramid. The base can be a rectangle but the laterals figures must be of 3 sides
Perimeter is the distance around something. Just add the lengths of the different sides of a figure. Area: Here you have to learn different formulae for different figures. For example, for a rectangle, just multiply length x width. Other figures have other formulae.
Pyramid.
There is no general rule. There are different formulae for simple figures like a sphere, a cone and a cylinder. Other figures have yet other and more complex formulae.
The REGULAR dodecahedron, formed from 15 pentagonal faces, has 30 edges. But there are a number of other 3-dimensional figures which have 12 faces (sides), with different numbers of edges and vertices.
sine wave
There are infinitely many spatial figures and it is not possible to give a comprehensive answer. For a partial answer, see the following link. However, the link is concerned only with polyhedra. There are other spatial figures - like spheres and ellipsoid etc.
A tetrahedron (4 triangular faces) is the only polyhedron that has a unique configuration of faces, edges and vertices. For any polyhedron with n (>4) faces, there is a prism with a pair of n-2 sided polygons as bases as well a pyramid whose base is an n-1 sided polygon. There are many other configurations for polyhedra with more faces. For example, there are ten [topologically] different figures with 6 faces: 3 of these are concave polyhedra.
A square and a rectangle as well as other quadrilaterals
star
A pentagonal pyramid.
A pentagonal heptahedron. A heptahedron is a solid figure with seven faces, and a pentagon is a five-sided plane figure.