Name the following cycloalkanes using I.U.P.A.C. nomenclature.
Parent chain: cyclopentane
Substituent: 1,2-dibromo
Isomer: cis
Name: cis-1,2-Dibromocyclopentane
Parent chain: cyclohexane
Substituent: 1,3-dimethyl
Isomer: trans
Name: trans-1,3-Dimethylcyclohexane