勾股定理是解决平面几何问题的重要工具之一,是沟通代数与几何的桥梁,但仍有不少同学在运用勾股定理解题时,因缺乏慎重考虑,时常出现错解现象,为了方便同学们学习,现将常见误区剖析如下:误区一应用勾股定理的前提是三角形是直角三角形,往往先入为主忽视直角三角形而用勾股定理例1在△ABC中,AB=10,BC=16,BC边上 Pythagorean theorem is one of the most important tools to solve the problem of plane geometry. It is a bridge between algebra and geometry. However, there are still many students who use the Pythagorean theorem to solve problems. Due to lack of careful consideration, Students learn, the common misunderstandings are now analyzed as follows: Misunderstandings The application of the Pythagorean theorem premise is that the triangle is a right triangle, often preconceived ignoring the right triangle and the Pythagorean Theorem Example 1 △ ABC, AB = 10, BC = 16, BC edge