Re fumana sebaka sa khutlonne joang?
Rectangle ke sebopeho se koetsoeng sa mahlakore a mabeli a mahlakore a mane a nang le likhutlo tse 'ne tse nepahetseng (likhato tse 90). Mahlakore a fapaneng a khutlonne a tšoana ebile a bolelele bo lekanang. Ka tloaelo, bolelele ba mahlakore a malelele bo bitsoa bolelele ba khutlonne'me bolelele ba mahlakore a makhutšoanyane bo bitsoa bophara/bophara ba khutlonne. Sebaka sa khutlonnetsepa se baloa ka ho atisa bolelele le bophara ba khutlonnetsepa. Ka mohlala, haeba bolelele ba khutlonnetsepa ke l'me bophara ba khutlonnetsepa ke w joale sebaka sa khutlonnetsepa = (l x w). Haeba mahlakore' ohle a khutlonne a lekana ka bolelele, joale e bitsoa sekwere. Ka hona, sekwere ke mohlala o khethehileng oa khutlonne.