A rectangular prism has six faces; each face has four right angles. There are 24 right angles in all.
In its most generalised form it comprises two connected, congruent and parallel faces: these faces are called the bases. In a right prism, the bases are at right angles to the length of the prism. In a polyhedral prism, all faces are polygons and, in such a case, the faces joining the bases are quadrilaterals. In the very special case of a right polyhedral prism, the bases are polygons and the lateral faces are rectangles.
You cannot since the triangular prism has faces meeting at 60 degrees - all the faces of a cube meet at right angles. You can have small cubes sitting within a triangular prism but they cannot "fit" into it.
The bases of a prism are general polygons and can have any angles in the range (0, 360) degrees excluding 180 deg, subject only to constraints imposed by the polygon. The lateral faces are all rectangles (in a right prism) and they meet the bases at right angles.
Right angles
There are 24.
a hexagonal prism has exactly 24 right angles!!!
A hexagonal prism is a three dimensional shape with two hexagonal bases and six faces. If the faces do not form a right angle with the bases, it is considered an oblique prism.
A rectangular prism has six faces; each face has four right angles. There are 24 right angles in all.
There are 24 right angles and 12 acute angles. I should know because I had to do a project on them.
A triangular block prism has four right angles on each of the three faces, so the total 'on all the faces' = 12.
A pentagonal prism has 5 faces, with each face having 5 vertices. Each vertex connects two adjacent faces, forming a total of 10 right angles around each vertex. Therefore, a pentagonal prism has a total of 50 right angles.
There are normally three rectangular faces and so their angles are all right angles. But there are no restrictions on the angles of the triangular faces other than that they sum to 180 degrees.
A triangular prism has three rectangular faces which, between them, will have 4*3 = 12 right angles. It also has two triangular faces and these can have another 2 right angles. So the answer is 12 or 14, depending on whether the triangles are right angled or not.
According to my calculations, I am a complete nerd, and the answer to your question is 0, there are no 90 degree angles in an octagonal prism.
There are no right angles (90 degrees) in a hexagonal pyramid.
A triangular prism has a total of nine angles. Each of the two triangular faces has three angles, totaling six angles. The three rectangular faces each have one right angle, adding three more angles. So, the total number of angles in a triangular prism is 6 + 3 = 9 angles.