A tetrahedron.
Tetrahedron
Yes, a polyhedron is only made up of one base which is bordered by straight lines. Each face is in fact a polygon, a closed shape in the flat 2-dimensional plane made up of points joined by straight lines.
a base
Tetrahedron
It is a pentagon.
It is a pentagon.
Cones and pyramids have only one base, but prisms have multiple bases.
A cone.
pyramid .
A tetrahedron.
Yes. A base on a polyhedron is a face and a base on a polygon is a side.
Tetrahedron
A polyhedron has only polygonal faces and any one of them can be considered a base. Therefore a polyhedron with 0 bases cannot exist.
Yes, a polyhedron is only made up of one base which is bordered by straight lines. Each face is in fact a polygon, a closed shape in the flat 2-dimensional plane made up of points joined by straight lines.
This is a "trigonal pyramid" or "tetrahedron."
False, prisms can have more than one base.