реугольника AEF равна
<span>S (АFB) = S (АВС) / 2 = 96 / 2 = 48 </span><span>S (DFB) = S (ADF) = S (AFB) / 2 = 48 / 2 = 24 </span><span>S (DEF) = S(DBF) / 2 = 24 / 2 = 12 </span><span>S (AEF) = S (ADF) + S (DEF) = 24 + 12 = 36</span>