那要慢慢給你算下哦~意思是說 1π的平方等於多少？ 2π的平方等於多少？............

1=3.14*3.14=9.8595

2=6.28*6.28=39.4384

3=9.42*9.42=88.7364

4=12.56*12.56=157.7535

5=15.7*15.7=246.49

6=18.84*18.84=354.9456

7=21.98*21.98=483.1204

8=25.12*25.12=631.0144

9=28.26*28.26=798.6276

10=31.4*31.4=985.95

11=34.54*34.54=1193.0116

12=37.68*37.68=1419.7824

13=40.82*40.82=1666.2724

14=43.96*43.96=1932.4816

15=47.1*47.1=2218.41

16=50.24*50.24=2524.0576

17=53.38*53.38=2849.4244

18=56.52*56.52=3194.5104

19=59.66*59.66=3559.3156

朋友好累呀~拿著計算機一個一個幫你算~~555555

記得多給點分呀~