Li-protractors le Tlhahiso le Phepelo ea Semicircular
Tlhaloso e Khutšoanyane:
Sepalami sa dikhutlo tse 180°/360°. Moralo o bonaletsang o nang le di-graduation tse hatisitsoeng. Ka kopo ikopanye le rona mabapi le MOQ, theko, moemeli le ditaba tse ding tsa tshebedisano-mmoho.