Which of the following will not form a polyhedron?
- ✓$3$ triangles.
- B$2$ triangles and $3$ parallelogram.
- C$8$ triangles.
- D$1$ pentagon and $5$ triangles.
Answer: A.
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| Properties | Cone | Cylinder | Prism | Pyramid | |
| 1. | The figure is a Polyhedron. | ||||
| 2. | The figure has diagonals. | ||||
| 3. | The shape has curved edges. | ||||
| 4. | The base of figure is a polygon. | ||||
| 5. | The bases are congruent. | ||||
| 6. | The base of figure is a polygon and other faces meet at a single point. | ||||
| 7. | The base of figure is a curved edge and other faces meet at a single point. | ||||


| Nets | Name of Solid | |
| a. | ![]() |
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| b. | ![]() |
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| c. | ![]() |
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| d. | ![]() |
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| e. | ![]() |
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| f. | ![]() |
| Faces | $y$ |
| Vertices | $12$ |
| Edges | $18$ |


| Faces | $9$ |
| Vertices | $z$ |
| Edges | $16$ |




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