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Pythagore
作者：
adriencroonenberghs
GeoGebra
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Parallelogram Linkage
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Parallel Line Image Maker
Slope Between 2 Points (Phase 2)
Steel Chair
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All Right Angles Congruent
Beispiel04
Triangle Sum Properties
Math project
TRANSLASI SEGI-N
Solutions to Quads' Definitions and Constructions
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3D 向量（三維）
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