Let be a convex polygon with 1415 vertices and perimeter . Prove that we can find 3 vertices of which form a triangle of area smaller than .
Let $N$ be a convex polygon with 1415 vertices and perimeter $2001$. Prove that we can find 3 vertices of $N$ which form a triangle of area smaller than $1$.
Školjka 
be a convex polygon with 1415 vertices and perimeter 
. Prove that we can find 3 vertices of 
.