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反射(鉛垂線、水平線及斜線) Reflection (vertical line, horizontal line and line)
Author:
TANG TSZ YUEN
Topic:
Reflection
,
Geometric Transformations
GeoGebra
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長方體平面投影 (Codex版)
近似值:有效數字
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平行線 (同位角 - 4對)
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Line Segment
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