同旁内角定理演示

几何画板及绘图内容加载中，请稍等……

2015-09-28 07:09

测试改名0 角几何作图

①本范例演示了平行线被截线所形成的同旁内角关系；②涉及核心数学概念包括同旁内角定理、平行线性质、角度测量；③构造要点使用了 GeoGebra 的 Segment（线段）、AttachCopyToView（对象复制）、text（文本）等命令和对象来绘制平行线、截线及标注角度；④适合初中及以上数学学习者用于理解和验证同旁内角定理的几何性质。

GeoGebra 命令及参数

Segment(A, B) → a
Segment(C, D) → b
Segment(E, F) → c
AttachCopyToView(PolyLine[(16.52, 4.139999999999999), (16.44, 4.139999999999999), (16.36, 4.139999999999999), (16.28, 4.139999999999999), (16.22, 4.119999999999999), (16.14, 4.119999999999999), (16.06, 4.119999999999999), (NaN, NaN), (16.48, 4.159999999999999), (16.44, 4.099999999999999), (16.38, 4.059999999999999), (16.34, 3.999999999999999), (16.28, 3.959999999999999), (16.26, 3.899999999999999), (NaN, NaN), (17.080000000000002, 3.1599999999999997), (17.06, 3.0999999999999996), (17.04, 3.0399999999999996), (16.98, 2.9799999999999995), (16.96, 2.9199999999999995), (16.94, 2.86), (NaN, NaN), (17.06, 3.1599999999999997), (16.98, 3.1599999999999997), (16.9, 3.1599999999999997), (16.82, 3.1599999999999997), (16.740000000000002, 3.1599999999999997), (16.68, 3.1399999999999997), true], 1, (-4.3, -5.239999999999997), (22.8, 6.299999999999998), (0, 577), (1355, 0)) → stroke1
Segment(G, H) → d
Segment(I, J) → e