~~~~~~~~~~識計的幫幫手
某半球體的總表面積是100cm^ 。求它的體積。
面積和體積(三)
2008-03-10 1:18 am
回答 (1)
2008-03-10 1:47 am
✔ 最佳答案
As Total surface area of semisphere=4(pi)r^2/2+(pi)r^2Let r be the radius of semisphere
4(pi)r^2/2+(pi)r^2=100
r=3.257350079 cm
The volume of semisphere is:
4/3(pi) /2 r^3=72.38555732 cm^3
參考: hjbi
收錄日期: 2021-05-01 15:25:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080309000051KK02339