C-14-Q139mediumsingle_mcq△ABC\triangle ABC△ABC ও △DEF\triangle DEF△DEF এ ∠A=∠D\angle A=\angle D∠A=∠D হলে—a△ABC:△DEF=AB⋅AC:DE⋅DF\triangle ABC:\triangle DEF=AB\cdot AC:DE\cdot DF△ABC:△DEF=AB⋅AC:DE⋅DFb△ABC:△DEF=AB:DE\triangle ABC:\triangle DEF=AB:DE△ABC:△DEF=AB:DEc△ABC=△DEF\triangle ABC=\triangle DEF△ABC=△DEFdAB⋅DE=AC⋅DFAB\cdot DE=AC\cdot DFAB⋅DE=AC⋅DF