求阴影部分的面积。's(P,Q)n;Z'l;Y*o-M7W+V7l'E
's(P,Q)n;Z'l;Y*o-M7W+V7l'E
算式:提示+_:r6f-T3~3w)[:e8J-D's(P,Q)n;Z'l;Y*o-M7W+V7l'E
答:阴影部分的面积是)Z*e6@:`.s.c:?3x-E平方厘米。's(P,Q)n;Z'l;Y*o-M7W+V7l'E