CPCTC
几何画板及绘图内容加载中,请稍等……
该范例演示了全等三角形的性质,涉及全等三角形对应边相等、对应角相等的核心概念。通过使用GeoGebra命令如Polygon、Line、Vector等进行几何作图,展示了三角形的全等变换过程。适合初中及以上学生学习几何变换和全等三角形的相关知识。
GeoGebra 命令及参数
Polygon(A, B, C) → PreImage, c, a, bLine(D, E) → ReflectionLineLine(G, H) → TranslationDirectionVector(G, G + (TranslationMagnitude * Vector[G, H])) → TranslationVectorTranslate(A, TranslationVector) → A'Translate(B, TranslationVector) → B'Translate(C, TranslationVector) → C'Polygon(A', B', C') → translated, c', a', b'Rotate(A', RotationAngle, RotationCenter) → A''Rotate(B', RotationAngle, RotationCenter) → B''Rotate(C', RotationAngle, RotationCenter) → C''Polygon(A'', B'', C'') → translated', c'', a'', b''Mirror(A'', ReflectionLine) → A'''Mirror(B'', ReflectionLine) → B'''Mirror(C'', ReflectionLine) → C'''Polygon(A''', B''', C''') → translated'', c''', a''', b'''