You can also add taper to an extrusion, like this:

I recall that you mentioned in a previous posting that you had very little experience reading drawings, and I want to point out that this drawing has a flaw in it that you should not repeat yourself-- it is over-dimensioned! The base of the cone is dimensioned (28.5mm), and the height of the cone is dimensioned (30mm - 10mm), and the angle of the cone is dimensioned (12°), and the top of the cone is dimensioned (20mm). Only three of those dimensions are needed to define the cone, any three will do. The fourth is not only not required, it should not be shown at all unless it is marked as a reference dimension, which is done by placing parentheses around it. Whoever created that drawing is guilty of disseminating bad habits to students.
Sam B
Inventor Pro 2024.0.1 | Windows 10 Home 22H2
