原帖由 CY.雨=]]` 於 2007-7-17 07:47 PM 發表
F.1中文問題
希望各位能幫我這個忙吧`
1`數學`
bobby has one piece of rectangular block and one piece of cubic building block.the rectangular block has length 4.5cm and breath 4 cm while each s ...
bobby有一個長方體和一個立方體,長方體長4.5cm,闊4cm,立方體邊長3cm,兩個固體體積相同,求長方體的高.
解:let x cm be the height of the rectangular block.