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拋物線的幾何性質
Author:
陳隆期
GeoGebra
New Resources
祖冲之的期望：内棋与外棋
圓周公式的應用
平行線的斜率
兩位數除以一位數（二）
多邊形的面積
Discover Resources
Symmetric設計對稱圖案(兩條對稱軸)(斜)
repetitive squares by excel
圓內接正N邊形
夜市麻將2
莫比乌斯带
Discover Topics
Secant Line or Secant
Isosceles Triangles
Solids or 3D Shapes
Rhombus
Confidence Interval