求阴影部分的面积。（单位：cm）)T,n(V9`5Y0s0s/O1A*\3C3X
)T,n(V9`5Y0s0s/O1A*\3C3X
算式：提示-h2X0M'd)T,n(V9`5Y0s0s/O1A*\3C3X
答：阴影部分的面积是0J(D'u,Y4X平方厘米。)T,n(V9`5Y0s0s/O1A*\3C3X