看到這個上海6年級競賽題，看你們誰能做出來！！？？

來源: lilipp 於 2012-03-23 14:30:02 [檔案] [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次 (592 bytes)

回答: 附和今天話題,看看上海中學生數學競賽幾何題目由野生動物攝影家於 2012-03-23 13:03:23

i cannot draw, but imagine a perfect square with a corner cut off (about 1/4 of the length on each of the two adjacent sides), the question is:

add one(1) straight line to the pattern, and devide it into (2) triagles.

hint/ think out of box

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