<prompt> Pembetatu ambazo wima ni overrightarrowA, overrightarrowB, na overrightarrowC ina eneo la 12. Tafuta eneo la pembetatu ambalo vipeo vyake ni -overrightarrowA mshale uliopitilizaB mshale wa kuliaC, overrightarrowA - overrightarrowB overrightarrowC, na overrightarrowA overrightarrowB - overrightarrow C.  <response>: Acha D, E, na F ziwe pointi zinazolingana na -overrightarrowA overrightarrowB overrightarrowC, overrightarrowA - overrightarrowB mshale uliopitilizaC, na overrightarrowA overrightarrowB - overrightarrowC, mtawalia.asyukubwa wa kitengo sentimita 0.4;jozi A, B, C, D, E, F;A 2,4;B 0,0;C 7,0;D -A B C;E A - B C;F A B - C;kuchoraA--B--C--mzunguko;kuchoraD--E--F--mzunguko,dashed;leboA, A, N;leboB, B, SW;leboC, C, SE;leboD, D, S;leboE, E, NE;leboF, F, NW;asyKishafracoverrightarrowE overrightarrowF2 fracoverrightarrowA - overrightarrowB overrightarrowC overrightarrowA overrightarrowB - overrightarrowC2 overrightarrowA,kwa hivyo A ndio kitovu cha overlineEF. Vile vile, B ndio kituo cha kati ya overlineDF, na C ni sehemu ya kati ya overlineDE, kwa hivyo eneo la pembetatu ABC ni frac14 eneo la pembetatu DEF . Kwa maneno mengine, eneo la pembetatu DEF ni 4 cdot 12 48. 