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圓周角觀察操作
Author:
陳隆期
GeoGebra
New Resources
拼砌四邊形
找出對稱軸
四邉形 (四年級) 教師版
柱體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
冥函数
DSE Circle-ACT01A Relationship between Chords and Centre of a Circle
從長方形的「周界」找回它的「長」和「闊」
圓與直線距離
計算在區域內部的圖形總數的副本
等比数列前n项和公式
Discover Topics
Isosceles Triangles
Standard Deviation
Geometric Transformations
Conditional Probability
Quadratic Equations