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3-3-04
Author:
Tzuen Hsu
GeoGebra
New Resources
画直线等分三角形的面积
畫出對稱圖形
球体的体积推导（优化版）
兩位數除以一位數（一）
判斷球體
Discover Resources
Trigonometric Ratios of Special Angles 特殊角的三角比
優良作品4
圖形的周界
三角函数的副本
geogebra和初中数学课程深度融合
Discover Topics
Confidence Interval
Cone
Percentages
Interest Calculation
Pythagoras or Pythagorean Theorem