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[問題] 線在面上
Author:
羅驥韡 (Pegasus Roe)
當 R 點在 PEQ 平面上時，BR : RD = ?
GeoGebra
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近似值：有效數字
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長方體平面投影 (Codex版)
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
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分數(二)
No.3
testing book
錐體及球體體積與表面積
函数作图工具的副本
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Equations
Kite
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Parallelogram