Usually not. A part of a circular shape will not.
pie actually its quite simple... you take the thickness of the crust which is a then you take the side of the slice and double it which is z to the second (z^2) then you take the entire pizza and make it pi the slice's angle from the tip to the crust will be V when you have figured this out it becomes this V=piz^2a (slice=pizza)
Technically it is not a shape, but the closest shape it comes out to be is a square.
3 square cut pieces of pizza are just a little less than one full slice, so I'd estimate about 200-250 calories in 3 square pizzas, depending on where you order from
25 square inches
If they are the diameters of the pizzas then:- Each slice of the 7 inch pizza is about 9.62 square inches Each slice of the 9 inch pizza is about 7.95 square inches
25 square inches.
Pizza "hut"
6
about 28.3 square inches
Sector of a circle or Circular sector or Circle sector or Disk sector. All are "two radii enclosed by an arc" like a slice of pizza! :)
Slice