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Which are prisms among the following?
(i)
(ii)
(iii)
(iv)
(i) It is not a polyhedron as it has a curved surface. Therefore, it will not be a prism also
(ii) It is a prism
(iii) It is not a prism. It is a pyramid
(iv) It is a prism
Using Euler’s formula find the unknown
Faces | ? | 5 | 20 |
Vertices | 6 | ? | 12 |
Edges | 12 | 9 | ? |