Which of the following solids are not polyhedrons?
(i) A cylinder is not a polyhedron. (ii) A cuboid is a polyhedron. (iii) A cube is a polyhedron. (iv) A cone is not a polyhedron. (v) A sphere is not a polyhedron. (vi) A pyramid is a polyhedron.
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According to the Euler’s formula, we have F + V – E = ___________.
Define the following: (i) Polyhedron (ii) Prism (iii) Pyramid
Following solids are made by joining cubes. Draw their different views.
A cuboid has _______ faces, _______ edges and _______ vertices.
