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过定点的直线切线的交点在定直线上
Author:
东海1号
Topic:
Conic Sections
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
判斷球體
異分母分數減法
拼砌四邊形
兩組對邊相等的四邊形
Discover Resources
平面幾何
量角器
區塊斜線教學
函数求导
圆锥的侧面展开图3D动画的副本
Discover Topics
Coordinates
Sphere
Right Triangles
Correlation
Isosceles Triangles