论文部分内容阅读
一些同学在初接触角的知识时,常会犯这样或那样的错误.邹老师总结了一些常见错误,让我们去看看吧.易错点一:对角的概念理解错误例1判断下列说法是否正确.(1)角是一条线段绕着它的一个端点旋转而成的图形.(2)周角的一半叫直角.(3)一条射线是一个周角.(4)直线是一个平角.(5)两条射线所组成的图形叫作角.
Some students often make one mistake or another when they first contact angle knowledge .Zhou teacher summed up some common mistakes, let us go and see it. Error-prone point one: diagonal concept to understand the error Example 1 to determine whether the following statement is: Correct. (1) The corner is a figure of a line rotating around one of its extremities. (2) Half of the perimeter is called a right angle. (3) One ray is a perimeter. (4) The line is a flat angle. 5) The composition of the two rays is called angle.