Engeza kuzintandokazi
 
Susa kusukela kuzintandokazi

Selilonke of a circle (azungezwe a circle) ifomula wokubala

Circumferenc sombuthano (azungezwe a circle) formula wokubala ikuvumela ukuba uthole selilonke (azungezwe) wombuthano, by the formula, usebenzisa engaba umbuthano.
Ububanzi (r):

Selilonke of a circle

A Umbuthano isethi wonke amaphuzu e indiza kukhona buqamama inikezwe kusuka iphuzu esilinikwe, isikhungo.
Formula for selilonke of a circle: p = 2πr,
ukuphi - engaba embuthanweni, π = 3.14159