Y by RedFireTruck
A polytope
in the plane is called a lattice polytope if all its vertices lie on integral lattice points: those of the form
with
integers. It is known that there exist rational numbers
and
such that for any lattice polytope
its area is area 
where
is the number of lattice points lying on the edges of
and
is the number of lattice points lying inside
. [Thus in the example
].

(i) Find
and
.
(ii) Prove the formula is valid for any lattice triangle.







where






(i) Find


(ii) Prove the formula is valid for any lattice triangle.
This post has been edited 2 times. Last edited by parmenides51, Jan 13, 2021, 1:02 PM