Pi day presentation idea

Hey everyone,

I am planning on making a presentation on Pi day in school.

I am planning to use Blender in my presentation,

I want to show the students that a circle can be made out of triangles like this,

My question is how can I create a circle out of triangles neatly ? I don't want to create a triangle then duplicate it then rotate it and repeat that over and over until it forms a circle. I want to do it in a way where the sides of the triangles are properly placed and I can increase the triangle count as much as I want. Please help me