求下面图形阴影部分的面积。)H7h4X-U8p4H-N
)H7h4X-U8p4H-N
算式：提示0Z)R7k'K4L1R7L2K/i0v,T3})H7h4X-U8p4H-N
答：阴影部分的面积是9D(v2P7f3L/O)k9N(~;U'g(H*L平方厘米。)H7h4X-U8p4H-N