I want to make cool geometry shapes, where do I start

>>460805 (OP)
>paper
>regular pencil
>compass w/ pencil
>ruler

Draw a circle with the compass, without changing the radulius put the point anywhere on the circle outline and then draw another circle.
Move the point to one of the two points where the second circle crosses the first, make another circle then keep repeating that process and you'll get second row on the left. Use the ruler to make lines connecting all the crossing points of the circles and you get top right.

Change the radius of the compass to the various lengths of the various line lengths you've made and more shapes emerge.

Transform, Rotate and Ctrl-D in Illustrator
https://helpx.adobe.com/illustrator/using/transforming-objects.html
https://we.graphics/blog/how-to-easily-duplicate-and-rotate-objects-around-any-point-in-illustrator/

You can now timetravel to 2011 and sell prints and tshirts to people with Macbooks.