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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.
Which two 3-dimensional figures have the same number of faces?
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.
Do all pyramids have the same number of faces?
no
