![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b219ebc4b74543a943b1e4560c178a82b8011485?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/b8014a90f603738d60e012b8a11bb051f919ec86?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/f9198618367adab49b7a05d999d4b31c8601e486?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a08b87d6277f9e2fdd9f03920d30e924b999f386?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/267f9e2f07082838c3a7c28eaa99a9014d08f186?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/86d6277f9e2f0708f3af349afb24b899a801f286?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
π的乘法口诀表为:
1π=3.14×1=3.14
2π=3.14×2=6.28
3π=3.14×3=9.42
4π=3.14×4=12.56
5π=3.14×5=5.7
6π=3.14×6=18.84
7π=3.14×7=21.98
8π=3.14×8=25.12
9π=3.14×9=28.26
10π=3.14×10=31.4
11π=3.14×11=34.54
12π=3.14×12=37.68
13π=3.14×13=40.82
14π=3.14×14=43.96
15π=3.14×15=47.1
16π=3.14×16=50.24
17π=3.14×17=53.38
18π=3.14×18=56.52
19π=3.14×19=59.66
20π=3.14×20=62.8
21π=3.14×21=65.94
22π=3.14×22=69.08
23π=3.14×23=72.22
24π=3.14×24=75.36
25π=3.14×25=78.5
26π=3.14×26=81.64
27π=3.14×27=84.78
28π=3.14×28=87.92
29π=3.14×29=91.06
30π=3.14×30=94.2
31π=3.14×31=97.34
32π=3.14×32=100.48
33π=3.14×33=103.62
34π=3.14×34=106.76
35π=3.14×35=109.9
36π=3.14×36=113.04
37π=3.14×37=116.18
38π=3.14×38=119.32
39π=3.14×39=122.46
40π=3.14×40=125.6
记忆口诀:
1π=3.14——1派山上拿钥匙
2π=6.28——2派送楼给恶霸
相关内容解释:
圆周率用希腊字母π(读作pài)表示,是一个常数(约等于3.141592653),是代表圆周长和直径的比值。它是一个无理数,即无限不循环小数。