http://us.f6.yahoofs.com/hkblog/rDkOb8SWERnmmaR4UeTpiIbmgvVT_1/blog/20100312052657750.jpg?ib_____D0Rjg7jpj
我唔明上列網址的周長點解咁計:(50加10)乘2加50乘2=220(要解釋!!)
單位:cm
周長和周界有咩唔同?
收錄日期: 2021-04-13 17:08:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100312000051KK01414