How to find the number of polygons/vertices of objects in Blender?

In Blender, the number of polygons and vertices of an object can be found in Edit Mode or Object Mode. To do this:

1. Select the object.
2. At the bottom of the 3D Viewport window, enable statistics display (View > Viewport Overlays > Statistics).

It will show the number of vertices, edges, and faces of the selected object.

If you need to get this data programmatically via Blender's Python API, you can use the following example:

import bpy
obj = bpy.context.active_object
mesh = obj.data
print(f"Vertices: {len(mesh.vertices)}")
print(f"Edges: {len(mesh.edges)}")
print(f"Faces: {len(mesh.polygons)}")

This script outputs the number of vertices, edges, and faces of the active object.