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प्रश्न
Can a polyhedron have for its face 4 triangles?
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उत्तर
Yes, a polyhedron with 4 triangular faces is a tetrahedron.
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संबंधित प्रश्न
Is it possible to have a polyhedron with any given number of faces? (Hint: Think of a pyramid).
Name the polyhedron that can be made by folding net:
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 square
In this case, name the object.
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.
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.
Identify if the following net can be used to form a cube:
Using Euler’s formula, find the unknowns.
| Faces | Verticles | Edges |
| 20 | 10 | ? |
How many vertices does the following solid have?
Cylinder
How many edges does the following solid have?
Sphere
