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不規則圖形的周界(intro)
Author:
WYC
GeoGebra
New Resources
兩位數加法
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
拼砌四邊形
【案例】2018年全国1卷理科12题
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三棱锥的体积推导
vectore_four stack pile
圓周率的應用 題1
椭圆的定义
雙曲線3 等軸法
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Similarity Transformation or Similarity
Numbers
Derivative
Kite
General Quadrilateral