two-dimensional shape curved line in the center one side is rounded while the other side is straight one side is usually larger than the other one side is usually darker than the other sometimes a half is marked with a line, circle, or other shape
half which has two-dimensional shape half which has curved line in the center half which has one side is rounded while the other side is straight half which has one side is usually larger than the other half which has one side is usually darker than the other half which has sometimes a half is marked with a line, circle, or other shape