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Pythagorean Theorem Proof: Shearing
Author:
Patrick Huang
GeoGebra
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兩組對邊相等和有直角的四邊形
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第八周作业
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整數或分數÷分數_ 工作紙（一）_題3c
全等三角形
F.3 Ch.10 Application of Trigonometry
s1118931
S8G5 增加的小方格
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