Articulation point in graph

Question

Comments

yep, 3 articulation points, nodes 2,3 and 5.

articulation point:removal of single vertex disconnects the graph.

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$2$ cut bridges here: $(2,3),(3,5)$ plz verify it.

Answer 1

A vertex in an undirected connected graph is an articulation point (or cut vertex) iff removing it (and edges through it) disconnects the graph.

Refer these images they might help in finding articulation point 

Now coming to problem given by you Yes your graph is having 3 articulation (cut vertex) point NODE 3, NODE 2 AND NODE 5

Answer 2

Articulation points are the vertex cut i.e the vertices whose removal will simply disconnect the graph. Here there are 3 such nodes.