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直线与圆相切
Author:
蔡永志
直线与圆相切
GeoGebra
New Resources
找出對稱軸
算柱 (兩位數)
長方體平面投影 (Codex版)
四邉形 (四年級) 教師版
球體建築師
Discover Resources
Time
旋轉動畫
兔子繁殖树状图（斐波那契数列）
運用量度器比較角的大小
三角形的面積
Discover Topics
Vectors 3D (Three-Dimensional)
Rotation
Statistical Characteristics
Functions
Trigonometric Functions