How many edges does a cuboid have ?
(a) 12 (b) 8 (c) 6 (d) 4
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Answer:
a)12
Face=6
Vertices=8
By Euler's formula the numbers of faces F, of vertices V, and of edges E of any convex polyhedron are related by the formula F + V = E + 2. In the case of a cuboid this gives 6 + 8 = 12 + 2; that is, like a cube, a cuboid has 6 faces, 8 vertices, and 12 edges.
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