[問題] 幫忙計下我個缸容量

iztman · **發表於 :** 2007-02-04 13:48

我d數學好差好差，有冇他可以幫我計下我個缸有幾大？我每次落藥/肥都唔肯定....唔該哂!!!!

fong168168 · **註冊時間:** 2006-12-07 11:58 **文章:** 19

arround 105 L

Andy Kong · **發表於 :** 2007-02-04 17:13

((18+29.5)x12)/2 係 footprint area, 即 285 sq. in.
體積是 285 x 18 = 5130 cu in.
水量 = 5130/61 = 84 Liter

15 · **發表於 :** 2007-02-04 17:27

i dont understand the drawing
it is a side view or a plan view?

大猩猩王~ · **發表於 :** 2007-02-04 18:00

15 寫:

:f
i dont understand the drawing
it is a side view or a plan view?

佢個缸係梯形來的

Andy Kong · **發表於 :** 2007-02-04 21:14

15, 有無聽過「上底加下底乘高除二」的口訣？

((18+29.5)x12)/2 = 285 sq. in.

個圖上半部係 Top View, 即梯形缸底，下半 18" x 29.5" 係 side view.

15 · **發表於 :** 2007-02-04 21:21

i understand now :oops:

iztman · **發表於 :** 2007-02-04 22:13

icic...! 唔該晒咁多位大佬！！！

tclohk · **發表於 :** 2007-03-02 23:11

84L is correct!!!

水草情迷