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3 perpendicular theorem 01
Author:
tcchan
GeoGebra
New Resources
球体的体积推导
球体的体积推导（优化版）
找出對稱軸
兩組對邊相等和有直角的四邊形
兩位數加法
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迭代出根號n螺旋線
梯形堆垛
第二次:20190110
S6G1 点列的回归曲线1 ：利用表格区作拟合曲线
祖冲之的期望：内棋与外棋
Discover Topics
Optimization Problems
Mode
Surface
Similarity Transformation or Similarity
Difference and Slope