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trigo ratios np2c
Author:
np2cmath
GeoGebra
New Resources
第八周作业
拼砌四邊形
直角坐標平面上的旋轉變換
三位數除以一位數（一）
球體建築師
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n星角
塗色02
極落戰艦-敵軍環伺 極座標遊戲
七巧板（tangram）的副本
椭圆滚动
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Frequency Distribution
Special Points
Similarity Transformation or Similarity
Statistical Characteristics
Angles