解三角形包括解直角三角形和解斜三角形两类问题.对于解斜三角形,可以通过作斜边上的高,将其转化为解直角三角形问题.因此,解直角三角形在解三角形这一内容中占有重要的地位.在生产、生活及相关学科中,我们经常遇到测量和计算距离、高度、角度等实际问题.这些问题都可以归结为求直角三角形中的边或角的问题.因此,学习本章有着重要的理论价值和实用价值.通过本章的学习以及运用相关知识解决一些简单的实际问题,可使学生进一步体会转化、数形结合和模 Solving triangles involves solving both the right-angled triangle and the oblique-angled triangle. For a beveled triangle, it can be transformed into a solution of a right-angled triangle by making a height above the hypotenuse. Therefore, solving a right-angled triangle plays an important role in solving the triangle In production, life and related disciplines, we often encounter the practical problems of measuring and calculating the distance, height, angle, etc. These problems can be attributed to the problem of finding the edge or corner in a right-angled triangle.Therefore, learning this chapter has Important theoretical value and practical value.Through the study of this chapter and the use of relevant knowledge to solve some simple practical problems, students can further understand the transformation, the combination of digital form and mode