一個圓柱體
回答 (10)
2007-04-28 2:29 am
表面面積是:6^2*3.14*2+2*3.14*6=263.76(平方厘米)
2007-04-26 5:13 am
(36*3.14/2)*(10+1)
=(56.52)*11
=621.72
2007-04-25 21:16:44 補充：
621.72 +56.52=678.24
=(56.52)*11
=621.72
2007-04-25 21:16:44 補充：
621.72 +56.52=678.24
2007-04-26 4:50 am
S側= 2 π ｒ．ｈ ＝120 π
S上底+S下底= ２π ｒ^2 ＝７２ π
S表= S側+S上底+S下底=192 π (ｃｍ＾２)
應該無計錯過...xd〞
S上底+S下底= ２π ｒ^2 ＝７２ π
S表= S側+S上底+S下底=192 π (ｃｍ＾２)
應該無計錯過...xd〞
參考: myself
2007-04-26 4:00 am
r = 6cm,
h = 10cm,
surface area = (2 x r x 3.14 x h)cm
= (2 x 6cm x 3.14 x 10cm)cm
= 376.8cm"2"
h = 10cm,
surface area = (2 x r x 3.14 x h)cm
= (2 x 6cm x 3.14 x 10cm)cm
= 376.8cm"2"
參考: 希望可以幫到你喇!!
2007-04-26 3:59 am
6嘅２次 X 3.14 X 2（２個圓面）+ 2 X 6 X 3.14 X 10 (曲面)
=226.08 + 376.8
=602.88平方厘米
I hope I can help you
=226.08 + 376.8
=602.88平方厘米
I hope I can help you
參考: me
2007-04-26 3:54 am
6 X 3.1415926535897932384626433832795 X 10 + 6 X 6 X 3.1415926535897932384626433832795 X 2 = 301.59289474462015089241376479483
2007-04-25 19:56:41 補充：
6 X 2 X 3.1415926535897932384626433832795 X 10 + 6 X 6 X 3.1415926535897932384626433832795 X 2 = 603.18578948924030178482752958966
2007-04-25 19:56:41 補充：
6 X 2 X 3.1415926535897932384626433832795 X 10 + 6 X 6 X 3.1415926535897932384626433832795 X 2 = 603.18578948924030178482752958966
參考: me
2007-04-26 3:53 am
6 x 2 x 3.14 + 10 x 3.14
=37.68 + 31.4
=69.08
∴表面面積是69.08 cm
=37.68 + 31.4
=69.08
∴表面面積是69.08 cm
2007-04-26 3:52 am
6x2x3.14x10
=376.8(cm)
=376.8(cm)
2007-04-26 3:51 am
答案=57.68
收錄日期: 2021-04-13 13:48:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070425000051KK03528