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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
How are prisms and cylinders alike?
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.)
What is the least number of planes that can enclose a solid? What is the name of the solid?
Is it possible to have a polyhedron with any given number of faces?
Using Euler’s formula, find the values of a, b, c and d.
| Faces | a | 5 | 20 | 6 |
| Vertices | 6 | b | 12 | d |
| Edges | 12 | 9 | c | 12 |
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.
Verify Euler’s formula for the table given below.
| Faces | Vertices | Edges |
| 20 | 13 | 30 |
Using Euler’s formula, find the unknowns.
| Faces | Verticles | Edges |
| 20 | 10 | ? |
A plane surface of a solid enclosed by edges is called ______.
How many faces does figure have?
