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包絡線：橢圓
Author:
羅驥韡 (Pegasus Roe)
Topic:
Ellipse
GeoGebra
New Resources
兩組對邊相等的四邊形
四邊形的特性
畫出對稱圖形
兩位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Relationships among 3 Circle Theorems 三個圓定理的關係
EX3.18
BEES定理2
算柱
比較分數大小
Discover Topics
Continuity
Cube
Algebra
Quadratic Functions
Straight Lines