翻阅各省的中考题,经常会见到《解直角三角形》的题型。此类题的原始题目是测量塔高问题,并以此为载体产生了许多变式题目。由于此类题目要结合几何图形、代数方程及根式的有关计算等知识,学生做这类题往往不得法,因而得分率不高。今就这类题目的各类变式及其通解作一探讨,以供考生参考。 When you read the examination questions in various provinces, you often see the question titled “Solving the Right Triangle.” The original title of such questions is to measure the height of the tower and use it as a carrier to produce many variant topics. Since such topics need to combine knowledge of geometric figures, algebraic equations, and root-related calculations, students are often not allowed to do such questions, and therefore the score is not high. We will now discuss various variants of these topics and their general solutions for reference by candidates.