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橢圓軌跡加滑桿
Author:
趙緹
GeoGebra
New Resources
找出對稱軸
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
拼砌四邊形
Discover Resources
Surface area of sphere
有向角
[問題] 以橢圓焦點為中心的正方形
fixed arc length and fixed shaded area
四邊形的特性
Discover Topics
Area
Median Value
Sine
Straight Lines
Multiplication