求阴影部分的面积(单位:cm)。(G9u0Y*];K7o*~(m8c1K/S:~+{
(G9u0Y*];K7o*~(m8c1K/S:~+{
算式:提示,N'Y.u(J(G9u0Y*];K7o*~(m8c1K/S:~+{
答:阴影部分的面积是-x8O0h3`(Q'V:n4G5V8@平方厘米。(G9u0Y*];K7o*~(m8c1K/S:~+{