Answer
The even vertices are vertex A, vertex B, vertex G, vertex H, and vertex I.
The odd vertices are vertex C, vertex D, vertex E, and vertex F.
Work Step by Step
An even vertex is a vertex with a degree that is an even number. An odd vertex is a vertex with a degree that is an odd number.
The degree of vertex A is 2, so vertex A is an even vertex.
The degree of vertex B is 2, so vertex B is an even vertex.
The degree of vertex C is 5, so vertex C is an odd vertex.
The degree of vertex D is 3, so vertex D is an odd vertex.
The degree of vertex E is 1, so vertex E is an odd vertex.
The degree of vertex F is 3, so vertex F is an odd vertex.
The degree of vertex G is 2, so vertex G is an even vertex.
The degree of vertex H is 2, so vertex H is an even vertex.
The degree of vertex I is 2, so vertex I is an even vertex.