Not sure what AI tools to use to create 3D style diagrams like these

[Saki H]

Hi, I want to create some diagrams in Illustrator like the sketches I have attached. Basically, the first one is three extruded 3D blocks radiating out from a central point and the second is a 3D column that has been divided into slices. Is there a tool in Illustrator that would make this easier and/or a tutorial explaining how to create graphs like these? Any suggestions how to get started would be great.

[Saki H]

I should add that for the first one, I was able to create the extruded blocks. I just can't figure out how to get the perspective of them to radiate out from a vanishing point.

[SJRiegel · Accepted solution]

To get them to radiate from the same vanishing point, group them, and then do the 3d effect.

[Ton Frederiks]

And for your second one; group some rectangles and apply 3D Revolve.

[Saki H]

Thank you both very much!