Planarity Algorithm (Edexcel A-Level Further Mathematics): Quizzes

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Planarity Algorithm
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10 questions from this quiz

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What defines a planar graph?

Drawn on plane without edge crossings

What does a Hamiltonian cycle do?

Visits every vertex once & returns

According to Kuratowski's Theorem, what indicates a graph is non-planar?

Contains K5K_5 or K3,3K_{3,3} subgraph

How many edges does K5K_5 have?

10

What is Euler's Formula for connected planar graphs?

v−e+f=2v - e + f = 2

In Euler's Formula v−e+f=2v - e + f = 2, what does ff represent?

Number of faces (including outer)

What is K3,3K_{3,3}?

Bipartite graph with 2 sets of 3

For a planar graph with v=5v=5 and e=6e=6, find ff using Euler's Formula.

3

What common mistake occurs when applying Euler's Formula?

Forgetting to count the outer face

What must be true before applying Euler's Formula v−e+f=2v - e + f = 2?

The graph must be connected

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