Indololwane yendlela-ntathu wuhlobo lokufakwa kwamapayipi okusetshenziselwa ukuhlukanisa ipayipi libe ngamapayipi amabili noma ukuhlanganisa amapayipi amabili kwelinye. Inezinhlobo eziningi ezahlukene zamafomu, njengamateyizi alinganayo obubanzi, amateyi anciphisa, njll.
