A rough method of finding the breaking strength of manila, hemp or sisal cordage is to square its circumference (in inches) and divide by 3, the answer being in tons.
Indlela egadalala yokufumana ukophuka kwamandla eManilla hemp, okanye intambo eqinileyo yesisal yeyowenza izikwere ezikwisangqa (kwi-intshi) kwaye zohlulwe kathathu, impendulo ibe kwii (toni) zikalwe ubunzimi.