一块方巾边长为4分米,它的周长是多少?面积是多少?6q*x4Q8C8H
算式:提示.O9d({5P-F4~,T3H5R6q*x4Q8C8H
答:它的周长是+[+X5f4i9m2W'F.i.~-A3Y:S2_.s5o*x分米,面积是-T-C0m9u3c*W7R9r平方分米。6q*x4Q8C8H