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sin,cos比大小
Author:
Lunxin Liu
GeoGebra
New Resources
拼砌四邊形
兩位數除以一位數(二)
画直线等分三角形的面积
三位數除以一位數(一)
找出對稱軸
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平行四邊形的面積
正四面體對邊向量垂直作圖證明
congruent (SSA, RHS)
閱讀鐘面及數字鐘(時和分)的副本
小五_近似值
Discover Topics
Parabola
Standard Deviation
Polygons
Parallelogram
Hyperbola