论文部分内容阅读
纵观近几年各地中考试题中的应用题,有不少题目需要借助于解直角三角形的知识才能获解.常见的有以下几种类型.一、测量高度1.测量两相邻物体的高这类问题一般是由较矮物体的顶部向较高的物体作垂线,从而把问题转化为解直角三角形来解决.例1如图1,两建筑物的水平距离为36
Looking at the application questions in various examination subjects in recent years, there are many questions that need to be solved by solving the knowledge of right triangles. There are the following types of common. First, measure the height The problem of measuring the height of two adjacent objects is generally to make the vertical line from the top of the shorter object to the higher object, so as to solve the problem by solving the right triangle. Example 1 is shown in Figure 1. The horizontal distance between two buildings is 36.