问题描述：
The square is divided into five rectangles,the perimeter of each rectangle is 30 cm, if you don'...
The square is divided into five rectangles,the perimeter of each rectangle is 30 cm, if you don't set x, can you work out the perimeter of this square?
The square is divided into five rectangles,the perimeter of each rectangle is 30 cm, if you don't set x, can you work out the perimeter of this square?
问题解答：
我来补答展开全文阅读