A lissafi na fannin ƙasar wanda bai bi ka'ida ko doka ba siffar
Saka da girma a mita
A B,
B C,
C D,
D A - Masu girma dabam jam'iyyar Gizo
U - Located dama kwana
Da lissafi shirin zai ƙayyade ƙasar yankin, ba a sani ba kusassari da girma na diagonals.