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Copy of 畫三角形 題2c
Author:
tongfai1975
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
找出對稱軸
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
異分母分數減法
兩位數除以一位數（二）
Discover Resources
圓環扇形
第一冊
slope
圓錐截痕模型
圓與切線
Discover Topics
Surface
Parabola
Trapezoid
Polynomial Functions
Unit Circle