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比較角的大小2
Author:
cheukyiu813
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
球体的体积推导（优化版）
算柱 (兩位數)
判斷球體
Discover Resources
Equal chords and their distances from the centre
trigo ratios np2c
Bar Chart and Pie Chart(棒形圖及圓形圖)
立體三角測量(例七&八)
翰林卷第10题
Discover Topics
Coordinates
Quadrilaterals
Incircle or Inscribed Circle
Geometric Mean
Similar Triangles