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正弦定理
Author:
羅驥韡 (Pegasus Roe)
Topic:
Sine
GeoGebra
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祖冲之的期望：内棋与外棋
画直线等分三角形的面积
平行線的斜率
讀磅
兩位數除以一位數（一）
Discover Resources
以剪貼比較圖形大小
觀察軌跡
初心者的進化
MathMedia150206
log functions
Discover Topics
Difference and Slope
Limits
Rectangle
Equations
Isosceles Triangles