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拋物線6--包絡線法
Author:
33陳郁婷
GeoGebra
New Resources
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
拼砌四邊形
畫出對稱圖形
Discover Resources
模擬3D曲面
二元一次
旋梯
優良作品8(宜庭)
量角器
Protractor-usage
Discover Topics
Mode
Pie Chart or Circle Chart
Plane Figures or Shapes
Centroid or Barycenter
Quadrilaterals