<prompt> Bhala indatshana emfushane enesihloko esilandelayo: Umuntu X uthola ifomula yezibalo  <response>: Yebo, nansi isigaba esifushane: UKaisley wathola indlela yokubala umthamo wesilinda. Le fomula ingu-V r2 h, lapho u-r uyisigaba sesilinda futhi u-h ukuphakama kwaso. 