Any face of a tetrahedron can be considered a base.
A pyramid, in general, has one polygonal face (with n sides) and n triangular faces. In such a pyramid, the triangular faces would normally not be considered bases - only the n-gon would.
any face that is not a base is?
Any face that is not a base is a what
The lateral face for a prism or pyramid is any edge or face which is not part of a base.
The base of a square pyramid is the only face that is a square - all the others are triangular in shape. So you do not need any measurements to determine which is the base.
True.
Depends on the pyramid. A pyramid with a square (or quadrilateral) base would indeed have 8 edges, but a pyramid can have any other polygon as a base.Depends on the pyramid. A pyramid with a square (or quadrilateral) base would indeed have 8 edges, but a pyramid can have any other polygon as a base.Depends on the pyramid. A pyramid with a square (or quadrilateral) base would indeed have 8 edges, but a pyramid can have any other polygon as a base.Depends on the pyramid. A pyramid with a square (or quadrilateral) base would indeed have 8 edges, but a pyramid can have any other polygon as a base.
false -apex
A pentagonal pyramid has exactly 6 faces.and a pentagonal prisim has 7
No, the base of a pyramid must be a 2-dimensional shape so no polyhedron can be its base.
The base of any pyramid is simply one side!
It depends on the shape of the base. A pyramid or a prism can have any polygonal shape as base and the formula for its area will depend on the shape. With other solid figures, the base may simply be the face tat the object happens to be "sitting" on: roll it and another face becomes the base.
No. A polyhedron is a three dimensional body. The base of a pyramid is a two dimensional figure.But any non self-intersecting polygon can be the base of a pyramid.