A right triangular prism has two identical faces. Two faces may or may not be identical in an oblique prism, in which the lateral edges are not perpendicular to the bases.
No. it could only have one pair of parallel faces. The cross section is triangular.
triangular prism
A cube has six faces and a triangular prism has five faces.
triangular prism
Prisms with any number of sides can have perpendicular faces. Often both end faces are perpendicular to the length. In the case of a REGULAR octagonal prism, there will be four pairs of parallel faces, where each face of a pair will be perpendicular to the two faces of one of the other pairs. There is not much that can be said with certainty about an irregular octagonal prism.
7
It need not have any. A right triangular prism has 12 pairs but could have 14.
A right triangular prism has two identical faces. Two faces may or may not be identical in an oblique prism, in which the lateral edges are not perpendicular to the bases.
A pentagonal prism has only 7 faces. Each of the five lateral faces is perpendicular to the two bases: that makes 10 pairs of mutually perpendicular faces. In general, the lateral faces are not perpendicular, but four of them may be perpendicular to one or more of its neighbors - at most 4 more pairs. Still not 25!
No. it could only have one pair of parallel faces. The cross section is triangular.
A triangular prism has three rectangular faces and two triangular faces.
A triangular prism has two triangular faces and 3 rectangular faces
Triangular prism
The differnence is that a triangular prism has 5 faces and and rectangular prism had 4 faces.
triangular prism
In a triangular prism, there are 2 triangular faces and 3 rectangular faces.