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圆锥曲线第二定义
Author:
冯伟冀
Topic:
Conic Sections
GeoGebra
New Resources
找出對稱軸
四邊形的特性
柱體建築師
四邉形 (四年級) 教師版
三位數除以一位數（一）
Discover Resources
橢圓軌跡05
Activity 1
ghk99a29 扇形旋轉
科赫雪花動態版 (Koch Snowflake)
擲兩個硬幣的機率分布的副本
Discover Topics
Arithmetic Operations
Plane Figures or Shapes
Centroid or Barycenter
Volume
Real Numbers