装修工小王这几天遇上了件烦心事,他承包了一户人家的新房装修工程,这几天装修已接近尾声,房东要在卫生间的墙上安一面镜子,安装镜子是件容易事,可这房东提了个要求让小王犯愁了.要求是:要能在镜子中看到自己全身,但又要用料最省,这下小王犯难了.聪明的同学们,你能用我们学过的数学知识帮他解决吗? Renovation worker Xiaowang met with annoyance these days, he contracted a new house renovation project for people, these days the renovation is nearing completion, the landlord to install a mirror on the wall of the bathroom, the installation of the mirror is an easy task , but this landlord made a request to make Xiao Wang guilty. The requirement is: to be able to see his own body in the mirror, but also to use the most materials, this time Xiao Wang guilty. Smart students, you can use Did we learn mathematics to help him solve it?