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證平行四邊形 (對邊相等)
Author:
W.L. Wong, Albert
GeoGebra
New Resources
畫出對稱圖形
拼砌四邊形
四邊形的特性
【案例】2018年全国1卷理科12题
算柱 (兩位數)
Discover Resources
尺規作圖髒髒版
美國隊長
三角函数诱导公式的副本
一筆畫圖形
〃One〃
Discover Topics
Integers
Quadratic Equations
Scatter Plot
Random Variables
Quadrilaterals