求下图形中阴影部分的面积。2u:\4e9P
2u:\4e9P
算式：提示;V1]-h*|(C4T2E(v*p0C,k3n(c2u:\4e9P
答：阴影部分的面积是*i(i-L2x,}4Y-g5|2u1X2J;p平方厘米。2u:\4e9P