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平行四邊形面積
Author:
lkkbmaths teachers 檔案儲存用
Topic:
Area
,
Parallelogram
GeoGebra
New Resources
拼砌四邊形
近似值：有效數字
算柱 (兩位數)
四邉形 (四年級) 教師版
找出對稱軸
Discover Resources
translation
學習單：Hilbert Curves
加法(粒條)
test
內心
Discover Topics
Parabola
Definite Integral
Pyramid
Cone
Rectangle