求下列图形的面积。（每个小方格边长是1cm）:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
3C.q9_5dcm²:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
9J2g(Y,{7m:J9e3v8S:s:w.x4w*@4N/F)@2Ncm²:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
({5M:@.mcm²:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y
7a2c7z0J0?0e/P;S4C;~2m:Wcm²:K7i(y;@:r6`,U'h/\/O6U2d)H7j*y