全等线段与倍长线段构造

几何画板及绘图内容加载中，请稍等……

2016-07-12 09:21

所属专题 Congruence (CO) Cluster Congruence (Vol 2) CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 Gail LeBlancCCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 CCSS High School: Geometry (Congruence) Volume 2 Constructions (Compass & Straightedge) Constructions (Compass & Straightedge) Constructions (Compass & Straightedge) Basic Constructions

①本范例演示如何构造一条与已知线段全等的线段，以及如何构造一条是已知线段n倍长的线段；②涉及的核心数学概念包括全等、比例、实数运算；③作图要点：使用GeoGebra命令构造线段Segment，对象包括点A、B、a、C、D、b；④适合初中及以上学生学习几何作图和比例关系，可用于数学教学和几何证明辅助。

GeoGebra 命令及参数

Segment(A, B) → a
Segment(C, D) → b