英语翻译The perimeter of a 7-sided figure is 15.If the length of each side of the figure is increased by 2 units,what is the perimeter of the new figure?

问题描述:

英语翻译
The perimeter of a 7-sided figure is 15.If the length of each side of the figure is increased by 2 units,what is the perimeter of the new figure?