A dog is tied to one corner of an equilateral hexagonal house. The side length of the hexagon is 1m, and the length of the dog leash is 2m. If the dog walks around the house, how much area can it walk out? (Pi is taken as 3)
一个等边六边形的房子一角拴着一条狗，六边形边长为1m，栓狗绳长2m，狗绕着房子行走，它能走出多少面积？(圆周率取3)
<result>9</result>