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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.
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What 3-dimensional figures have the same number of faces?
triangular prism
Write two figures of 3 dimensional figures that have the same number of faces?
A triangular prism and a square pyramid.
Are edges and sides the same thing?
It gets confusing. In a futile attempt to standardize terminology, use "sides" for 2d figures (the sides of a square), use "edges" for 3d figures (the edges of a prism) and use "faces" for 3d figures (the faces of a tetrahedron).
What is the relationship between the coefficient of a number in scientific notation and the number of significant figures?
The number of digits in the coefficient should be exactly the same as the number of significant figures.
Do all pyramids have the same number of faces?
no
