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公弦
Author:
孟宝兴
三个相交圆，两两之间的公弦过一点。
GeoGebra
New Resources
算柱 (兩位數)
球體建築師
拼砌四邊形
異分母分數減法
兩組對邊相等和有直角的四邊形
Discover Resources
二元一次方程式圖形
盾牌(小動畫)
雙曲線的定義
Angle between 2 planes
拋物面的光學性質
Discover Topics
Square
Cuboid
Geometric Mean
LCM and GCD
General Quadrilateral