If we take a circle not a sphere and not a cylinder. A circle with 32 edges and make face with F and i want to divide that faces in 6 equal parts. As Loop cut do not work on faces. How can we make it.
This is a nice example of a very unclear question. I actually got it completely different than the other two, as I had a piece of cake in mind like this:
You'll need 36 verts for this to work, and have the disc filled with an n-gon. Then, connecting the vertices opposite each other using J would do the trick.
Inset I the circle with distance of
1.0/6units (if the circle has radius of
Repeat 4x with Repeat Last Shift+R.
If the circle has some ugly diameter:
Delete the central vertex, select all 32 edges, E extrude, S scale, move the mouse, enter to confirm. repeat 6 times; select the last 32 scaled edges, Alt M merge at center to close the mesh. After pressing S for scaling you can enter a numeric value for scaling exactly the same amount every time.