Please 解答
Thx!!!
更新1:
半徑係4米.................所以在噴水池的半米外建造一道金屬圍欄
數學功課......解答
2008-05-12 10:04 pm
圓形噴水池一個,徑係4米,為免遊人走入噴水池,所以在噴水池的米外建造一道金屬圍欄,如果建造圍欄每米要70元,建造整道圍欄需要多少元????
Please 解答
Thx!!!
Please 解答
Thx!!!
回答 (4)
2008-05-12 11:19 pm
✔ 最佳答案
我做過......(4x2+0.5X2)X3.14x70
=(8+1)x3.14x70
=9x3.14x70
=28.26x70
=1978.2(元)
參考: 作業
2008-05-12 10:15 pm
我想問下係直徑４米，定係半俓4米??同埋兀係3.14定7分之22呢??
如果直徑４米就係:
4×3.14x70
=12.56x70
=879.2(米)
如果半徑４米就係:
(4×2)x3.14x70
=8x3.14x70
=25.12x70
=1758.4(米)
希望可以幫你啦!!
如果直徑４米就係:
4×3.14x70
=12.56x70
=879.2(米)
如果半徑４米就係:
(4×2)x3.14x70
=8x3.14x70
=25.12x70
=1758.4(米)
希望可以幫你啦!!
參考: 自己
2008-05-12 10:12 pm
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8.Whatis your name?
2.What do you usually do at weekends?
3.What are your parent's jobs?
4.Why do you choose our school?
5.What medium of instruction do we use?
6.What books do you like to read?Why?
7.What curriculum do we use?
8.Whatis your name?
2008-05-12 10:06 pm
噴水池的米外
幾米外?????
唔知點計呢@@
幾米外?????
唔知點計呢@@
收錄日期: 2021-04-25 22:39:42
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