A rectangular block with size 6cm*8cm*9cm is melted and moulded into 3 identical blocks.If the cross-sectional area of each smaller block is 12cm^2,find the length of the smaller block.
solution:
volume of each smaller block=?
f.1 maths
2007-08-09 5:57 am
回答 (2)
2007-08-09 6:13 am
✔ 最佳答案
The total volumne of the rectangular block = 6 x 8 x 9 = 432cu. cmeach identical smaller block volume = 432 / 3 = 144 cu. cm
The length of the smaller block = 144 / (cross-sectional area)
= 144/12
= 12 cm
參考: 自己計
2007-08-09 7:14 pm
Volume of rectangular block = 6 x 8 x 9 = 432cm^3
Volume of each smaller block = 432/3 = 144cm^3
Length of each smaller block = 144/12 = 12cm
Volume of each smaller block = 432/3 = 144cm^3
Length of each smaller block = 144/12 = 12cm
參考: me : )
收錄日期: 2021-04-25 21:53:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070808000051KK06082