Zero!
A triangular prism can have right angles. If the prism has two triangular ends, then each of the three 'sides' meets each of the ends at right angles.
It has 12 right angles. 4 on each rectangular side. 3*4 = 12
8
A triangular block prism has four right angles on each of the three faces, so the total 'on all the faces' = 12.
14 if the triangular cross section has a right triangle, 12 otherwise.
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.
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.
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.
In a general triangilar prism, none.In a right triangular prism, three pairs and one triplet.In a general triangular prism, none. In a right triangular prism, three pairs and one triplet.
No, it is not.
It may be though it does not have to be.
A octagonal prism has 32 right angles!!!!!