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折纸成抛物线
Author:
蔡永志
Topic:
Conic Sections
,
Parabola
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
拼砌四邊形
球體建築師
Discover Resources
正九邊形
曲柄滑塊
各種切圓
时钟 的副本
双动点求三角形最大面积演示
Discover Topics
Means
Geometric Distribution
Translation
Orthocenter
Volume