Question: 1. Sketch a planar graph (without multiple edges or loops) in which every vertex has degree 3. 2. Sketch a planar graph (without multiple edges

1. Sketch a planar graph (without multiple edges or loops) in

1. Sketch a planar graph (without multiple edges or loops) in which every vertex has degree 3. 2. Sketch a planar graph (without multiple edges or loops) in which every vertex has degree 4. 3. If a planar drawing of a graph has twice as many edges as vertices, find a relationship between the number of faces and the number of vertices

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