Manollo ea arches boipelaetso terata
Kena litekanyo tse hlokehang a limilimithara
H - bophahamo bonyane ba terata ya
Y - bophahamo palo e kahodimodimo ea terata e
X - e leng sebaka se pakeng tsa litsi tsa rails ntle
Z - e le bophara ba slats terata
K - Palo ea slats karolong ea
D - E leng sebaka se pakeng tsa rails ea
Haeba phahameng
Y > H
Haeba phahameng
Y < H