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Question

How many vertices are there in a
(i) cuboid
(ii) tetrahedron
(iii) pentagonal prism
(iv) square pyramid?


Solution

(i) A cuboid has 8 vertices, namely A, B, C, D, E, F, G and H.


(ii) A tetrahedron has 4 vertices, namely K, L, M and N.


(iii) A pentagonal prism has 10 vertices, namely A, B, C, D, E, F, G, H, I and J.


(iv) A square pyramid has 5 vertices, namely O, W, X, Y and Z.

Mathematics
RS Aggarwal (2016)
Standard VIII

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