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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Graph Theory and Networks

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The Bridges of Konigsberg

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Network Trees

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Euler Meets Schlegel

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The resources in this feature are designed as an introduction to the world of graph theory and networks, which has many real life applications. You don't need any prior knowledge, so jump in and have a play, and see what theorems you can discover!

You can also discover more about networks in these Plus articles.

Age 11 to 18

Challenge Level

Investigate how networks can be used to solve a problem for the 18th Century inhabitants of Konigsberg.

Age 14 to 18

Challenge Level

Explore some of the different types of network, and prove a result about network trees.

Age 16 to 18

Challenge Level

Discover how networks can be used to prove Euler's Polyhedron formula.

Age 11 to 18

Read about how mathematicians used network theory to predict the spread of disease among teenagers.