C-14-Q071mediumsingle_mcq△ABC∼△DEF\triangle ABC\sim\triangle DEF△ABC∼△DEF এ BC:EF=2:3BC:EF=2:3BC:EF=2:3 হলে △ABC:△DEF=?\triangle ABC:\triangle DEF=?△ABC:△DEF=?a4:94:94:9b2:32:32:3c8:278:27