Obtain a two-inch broad clear plastic rule which has some parallel lines along its length; the inch and centimetre markings along its sides are not of much use but can at times be used for measuring.
Fumana i-intshi ezimbini ezinobubanzi obucacileyo bomthetho weplastiki, lowo unayo neminye imigca enxuseneyo phakathi nobude bayo; ii-intshi kunye nophawulo lwe-sentimeta emacaleni onke awasebenziseki kakhulu kodwa ngamanye amaxesha angasetyenziswa ukulinganisa.