求三角形边长时值得注意的几个问题

• 作 者: 韩勤 张肇平
• 机 构: 江苏省常熟外国语学校,江苏省常熟外国语学校 215500,215500
• 出 处: 数理化学习(初中版)
• 发表日期: 2004年09期
• 关键词: 填空题 实数根 上海市阂行区 整数值 余弦值 三边 实数值 女口 说明理由 市中

解三角形问题常常需要求三角形的边长,而求边长问题的类型,有单纯的解三角形问题,也有和代数问题综合在一起,这样更加大了难度.这类问题也成为近年来中考的热点题型,它既有选择填空题,又有综合性的大题.下面通过一些实例,谈谈求三角形边长时值得注意的几个问题.

The problem of solving a triangle often requires the length of the sides of the triangle, and the type of the length of the length of the side, the problem of simply solving the triangle, and the problems of the algebra are integrated, which is even more difficult. This type of problem has also become a hot topic in recent years. The question type, it has the choice fills in the blank question, also has the comprehensive big question. Now through some examples, talks about when the triangle side length is worth paying attention to several questions.