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प्रश्न
Which among the following are nets for a cube?
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उत्तर
\[\text { To create a cube, we need six equal faces that enclose a closed box }.\]
\[\text { In the given figure, only (iv), (v) and (vi) are such nets that enclose }\]
\[\text { a box when we fold each face from the edge }.\]
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संबंधित प्रश्न
Is it possible to have a polyhedron with any given number of faces? (Hint: Think of a pyramid).
How are prisms and cylinders alike?
Using Euler's formula find the unknown:
| Faces | ? | 5 | 20 |
| Vertices | 6 | ? | 12 |
| Edges | 12 | 9 | ? |
Name the polyhedron that can be made by folding net:
State, the number of faces, number of vertices and number of edges of:
(i) a pentagonal pyramid
(ii) a hexagonal prism
Dice are cubes with dots or dots on the face. Opposite faces of a die always have a total of seven on them.
In the given below net to make dice (cube), the numbers inserted in the square indicate the number of dots in it.
Insert suitable numbers in the blank so that numbers in opposite faces of the die have a total of seven dots.
Using Euler’s formula, find the unknowns.
| Faces | Vertices | Edges |
| 8 | ? | 10 |
How many faces does the following solid have?
Octahedron
How many vertices does the following solid have?
Cone
How many edges does the following solid have?
Kaleidoscope
