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平行3
Author:
Hui Sir
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
【案例】圆柱体内放置一个大球六个小球
判斷球體
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有人要告白嗎?
弦心距比較
正多角柱(簡易)
Circle
玖数小学数学（思维拓展）
Discover Topics
Frequency Distribution
Curve Sketching
Median Line
Statistical Characteristics
Dilation