A connected planar graph has 4 edges and 4 faces.
- Calculate the number of vertices for this graph. (2 marks)
--- 4 WORK AREA LINES (style=lined) ---
- Draw the planar graph. (2 marks)
--- 5 WORK AREA LINES (style=lined) ---
Show Answers Only
i. `text{2 vertices}`
ii.
Show Worked Solution
| i. `v+f` | `=e+2` |
| `:. v` | `=e-f + 2` |
| `= 4-4 + 2` | |
| `= 2` |
ii.