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切线长定理(对折图形)
Author:
董君
GeoGebra
New Resources
拼砌四邊形
柱體建築師
算柱 (兩位數)
錐體建築師
兩位數加法
Discover Resources
方格紙上畫平行四邊形4
邊長與三角形（二）
gjc096a19 平行四邊形內截兩扇形
拋物線
a sin(bx+c) + d 的圖形的副本
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Optimization Problems
Logic
Mathematics
Differential Calculus
Subtraction