Beginner with Blender, but I’ve successfully made a donut and coffee cup via Blender Guru. Now I’m trying to get a little bold for my scene and create a paper plate.
Here’s how I figure the best approach would be:
I’d first need to take my current plate and make a segment of it a “pie slice” evenly by creating two edges to somehow align into the center axis. Then I create the concave vertical slits along the top rim using the sculpting window. After that’s completed, I’d use the array modifier to duplicate the plate’s slice along a circular path while ensuring “merge” is enabled and while ensuring the faces don’t overlap.
So my questions are:
 When erasing and adding faces, vertexes, edges, etc.; how do I create new edges and vertices at an angle to align to the center?
 How would I ensure the edges of the “pie slice” plate but up against each other using the array modifier tool?
I’ve looked at tutorials and cannot find definitive answers that help me resolve my approach to making a paper plate.