http://img809.imageshack.us/img809/6660/44240738.jpg
圖片參考：http://img809.imageshack.us/img809/6660/44240738.jpg
inequalities
2011-12-02 5:58 am
回答 (1)
2011-12-02 6:41 am
✔ 最佳答案
BC is the longlest side :18 > x + 4x < 14
The sum of two shortest sides > The longest side :
AB + AC > BC
2(x + 4) > 18
x > 5So the range of values of x is 5 < x < 14 .
收錄日期: 2021-04-20 11:58:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111201000051KK00820