3.14*1²=3.143.14*2²=3.14*4=12.563.14*3²=3.14*9=28.263.14*4²=3.14*16=50.243.14*5²=3.14*25=78.53.14*6²=3.14*36=113.043.14*7²=3.14*49=153.863.14*8²=3.14*64=200.963.14*9²=3.14*81=254.34希望对您有帮助~望采纳~O(∩_∩)O谢谢~
什么意思呀