单项选择题
按照图画出所示图形，求剖面线区域的面积。（）
A.1029.7229 B.1029.2729 C.1029.7292 D.1029.7922
A.799.0126 B.799.0621 C.799.0162 D.799.0612
A.2494.5075 B.2494.0557 C.2494.0575 D.2494.0755
