看图列式计算。（单位：cm）'X3m9?0M0r5?,g(d7L
'X3m9?0M0r5?,g(d7L
（1）求图1中的周长与面积。'X3m9?0M0r5?,g(d7L
（2）求图2中阴影部分的面积。'X3m9?0M0r5?,g(d7L
算式：提示+U+B:j)~6V+J3S*~'X3m9?0M0r5?,g(d7L
答：周长是(\:g9X3r-x2n8['W'X.`1Y8d厘米、7f3V+f'Z平方厘米面积是。'X3m9?0M0r5?,g(d7L
算式：提示0M7`;Q6y6F)x3h1L/c2d'X3m9?0M0r5?,g(d7L
答：阴影部分的面积是5R;m+S0{-h0f2W)X7M6o3}平方厘米。'X3m9?0M0r5?,g(d7L