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Author:
Peng Yu
GeoGebra
New Resources
盈利與虧蝕
活动三：应用性质
双心四边形
平行線的判定
科氏力 (Coriolis Force)
Discover Resources
內心
三角形的面積
圓與三角形
n星角 のコピー
Template: 圓周
Discover Topics
Functions
Circle
Trapezoid
Cosine
Similar Triangles