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圓周角與圓心角關係
Author:
ginwha
GeoGebra
New Resources
三位數除以一位數（一）
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
畫出對稱圖形
画直线等分三角形的面积
Discover Resources
直线倾斜角与斜率
Slope of a St. Line (formula)
二次曲線-2.拋物線
雙曲與漸近線
包絡線：橢圓
Discover Topics
Hypothesis Testing
Combinatorics
Equations
Interest Calculation
Difference and Slope