A 5/πcm
B 2.5/πcm
C 5πcm
D 2.5πcm
要有步驟.最好有埋解釋~
唔該你唔該你唔該你
^^THX A LOT`````````````````````
更新1:
A 5/πcm
中二數學面積和體積一題.
2009-08-25 8:29 am
有兩罐汽水,每罐的體積是250cm3,把它們放進一載了水的直立圓柱體形容器。容器的底半徑是10cm。若兩罐完全浸沒在水裡,且沒有水溢出.問水位上升了多少?
A 5/πcm
B 2.5/πcm
C 5πcm
D 2.5πcm
要有步驟.最好有埋解釋~
唔該你唔該你唔該你
^^THX A LOT`````````````````````
A 5/πcm
B 2.5/πcm
C 5πcm
D 2.5πcm
要有步驟.最好有埋解釋~
唔該你唔該你唔該你
^^THX A LOT`````````````````````
回答 (2)
2009-08-25 8:39 am
2009-08-25 8:44 am
容器的底面積=半徑是π10^2=100πcm^2
水位上升2*250cm^3/(100πcm^2)
=5/πcm
本題兩罐汽水如已開啟解答就不是5/πcm
水位上升2*250cm^3/(100πcm^2)
=5/πcm
本題兩罐汽水如已開啟解答就不是5/πcm
收錄日期: 2021-04-23 20:58:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090825000051KK00076