Answer:
Hexagon
Step-by-step explanation:
A triangle has 3 vertices.
We need to find the figure which has 3 more vertices than a triangle.
Which means the figure should have 6 vertices (3 +3).
Let's name the polygons with respect to the number of vertices.
Triangle - 3 vertices
Rhombus - 4 vertices
Pentagon - 5 vertices
Hexagon -6 vertices.
Therefore, Hexagon has 6 vertices.
Answer: Hexagon.