planar and non planar

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What is the difference between planar and non- planar graph? 

PLANNER GRAPH :-
• A graph in which the direction of current or direction or of Edge is given is called planar graph. 
• planar graph is also known as oriented graph. 

Non-Planar graph:-
• A graph in which the direction of current age is not given is called Non - Planar graph. 
• Non-planar graph is also known as unoriented graph. 

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