中2 面積和體積 求解答 thx

2013-07-02 6:00 am
如何能求出圓柱的半徑和高? 我做功課個陣就會卡住咗係度,請幫幫忙 thx!

回答 (2)

2013-07-02 6:18 am
✔ 最佳答案
Cylinder's volume:
V:Volume
r:radius
h:height

V=πr^2h
r=sqrt(V/(πh))
h=V/(πr^2)

2013-07-01 22:20:07 補充:
Example: given height is 10cm, volume is 10πcm^3, find the radius.
Let the radius be r cm.
10π=10πr^2
1=r^2
r=1

2013-07-01 22:20:33 補充:
You can use the formulas that you have been taught, and set up equations from them.
參考: myself :D
2013-07-02 7:45 am
求圓柱的半徑:

你先將 圓柱體積 ÷ 高
    再 ÷ [兀] ÷ 2
   =圓柱的半徑

求圓柱的高:

先把  圓柱體積 ÷ 半徑
    再 ÷ [兀] ÷ 2
   =圓柱的高

如果有任何問題,可以搵我架 /3\
參考: 自己xd


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