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प्रश्न
What is the least number of planes that can enclose a solid? What is the name of the solid?
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उत्तर
\[\text { The least number of planes that can enclose a solid is 4 }.\]
\[\text { Tetrahedron is a solid with four planes (faces) }.\]
संबंधित प्रश्न
Can a polyhedron have for its faces a square and four triangles?
Is it possible to have a polyhedron with any given number of faces? (Hint: Think of a pyramid).
Here is an incomplete net for making a cube. Complete it in at least two different ways. Remember that a cube has six faces. How many are there in the net here? (Give two separate diagrams. If you like, you may use a squared sheet for easy manipulation.)

Draw net for the following polyhedron :

The figure, given below, shows shadows of some 3D object when seen under the lamp of an overhead projector:

A rectangle
In this case, name the object.
The following figure represent the nets of some solid. Name the solid

A solid figure with only 1 vertex is a ______.
How many vertices does the following solid have?
Octagonal Pyramid
A triangular prism has 5 faces, 9 edges and 6 vertices.
What defines the edges of a solid shape?
