求出下面各图形的面积。(单位:cm)'J5b+b,D:O1~.G1c;v9f8a8S(U
'J5b+b,D:O1~.G1c;v9f8a8S(U
(1) (2)'J5b+b,D:O1~.G1c;v9f8a8S(U
(1)
算式:提示(]5P1y5W,B3L'J5b+b,D:O1~.G1c;v9f8a8S(U
(2)
算式:提示(q+C8~,Y8c;G9Z0v1c6n'J5b+b,D:O1~.G1c;v9f8a8S(U
答:(1)面积是*P(U.P)?:r*r(i8Y-[平方厘米(2)面积是8u9m;V+b)p-B'g;M4C*Z-~2x+y1d3g平方厘米。'J5b+b,D:O1~.G1c;v9f8a8S(U