Double Reflection over Intersecting Lines

主題：反射

Drag the blue points on the intersecting lines to modify the sketch. Notice the relationship between the angle between lines and the angle of rotation between image and pre-image.

探索資源

Transformations of the plane
Acides-Bases Francois Byasson septembre2014texteAjustement
project bell 7 Alex
Converse of IST: Template
trianglesRotation
Lagrange Multiplier Demo

探索主題

正方形
正切線或正切
相似三角形
算術運算
圓

Double Reflection over Intersecting Lines

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