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两条直线被第三条直线所截,得到八个角,我们称之为“三线八角”,“三线八角”是几何入门阶段的一个重要内容,是今后学习平行线的性质及判定的前提和基础,本文就学习中应注意的有关问题谈两点看法,供大家参考。
The two straight lines are truncated by the third straight line to get eight corners. We call it “three lines and eight horns”. The “three lines and eight horns” is an important part of the geometric entry phase and is the prerequisite for learning the nature of the parallel lines and their judgment in the future. Basically, this article will discuss two points of view on relevant issues that should be noted in the study for your reference.