如图，ABCD是6×8的长方形，AF长是4。求阴影部分的面积。（单位：分米）/t(b.F4d/i(U6x3[8i'C+M'?+}3_
/t(b.F4d/i(U6x3[8i'C+M'?+}3_
算式：提示-t)q/k'{4?8]/t(b.F4d/i(U6x3[8i'C+M'?+}3_
答：阴影部分面积是;L;M)\({*T7s/u平方分米。/t(b.F4d/i(U6x3[8i'C+M'?+}3_