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平行線的斜率
Author:
Anthony OR 柯志明
Topic:
Difference and Slope
GeoGebra
New Resources
画直线等分三角形的面积
拼砌四邊形
異分母分數減法
兩位數加法
兩位數除以一位數（二）
Discover Resources
生活中的平面圖形問題2
角平分線-1
外心
麻之葉
两角差的正弦公式证明2
Discover Topics
Volume
General Quadrilateral
Straight Lines
Root
Interest Calculation