Show that the following graph is planar by redrawing it so that no edges cross. b Ø P с

Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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**Title: Exploring Planarity in Graphs**

**Objective:** Demonstrate the planarity of a given graph by redrawing it with no crossing edges.

**Graph Description:**

The graph consists of six vertices labeled \(a, b, c, d, e,\) and \(f\). The edges are connected as follows:

- Vertex \(a\) is connected to vertices \(b, d,\) and \(e\).
- Vertex \(b\) is connected to vertices \(a, c,\) and \(e\).
- Vertex \(c\) is connected to vertices \(b\) and \(f\).
- Vertex \(d\) is connected to vertices \(a, e,\) and \(f\).
- Vertex \(e\) is connected to vertices \(a, b, d,\) and \(f\).
- Vertex \(f\) is connected to vertices \(c, d,\) and \(e\).

**Visual Explanation:**

The diagram currently shows the graph with several edges overlapping (crossing each other). The task is to redraw this graph in a manner where all edges are visible without any overlaps. By rearranging or repositioning the vertices, it may be possible to illustrate that the graph is planar, meaning it can be drawn on a plane without any edges crossing.

The key step in achieving planarity is experimenting with different vertex arrangements until a configuration is found where no edges intersect.
Transcribed Image Text:**Title: Exploring Planarity in Graphs** **Objective:** Demonstrate the planarity of a given graph by redrawing it with no crossing edges. **Graph Description:** The graph consists of six vertices labeled \(a, b, c, d, e,\) and \(f\). The edges are connected as follows: - Vertex \(a\) is connected to vertices \(b, d,\) and \(e\). - Vertex \(b\) is connected to vertices \(a, c,\) and \(e\). - Vertex \(c\) is connected to vertices \(b\) and \(f\). - Vertex \(d\) is connected to vertices \(a, e,\) and \(f\). - Vertex \(e\) is connected to vertices \(a, b, d,\) and \(f\). - Vertex \(f\) is connected to vertices \(c, d,\) and \(e\). **Visual Explanation:** The diagram currently shows the graph with several edges overlapping (crossing each other). The task is to redraw this graph in a manner where all edges are visible without any overlaps. By rearranging or repositioning the vertices, it may be possible to illustrate that the graph is planar, meaning it can be drawn on a plane without any edges crossing. The key step in achieving planarity is experimenting with different vertex arrangements until a configuration is found where no edges intersect.
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