Cakram (matematika)
caption: Cakram yang terdiri dari .mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{} keliling 



C


{\displaystyle C} diameter 



D


{\displaystyle D} radius (atau jari-jari) 



R


{\displaystyle R} titik pusat 



O


{\displaystyle O}