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內切圓
Author:
楊明德
Topic:
Incircle or Inscribed Circle
GeoGebra
New Resources
斜率的值
【案例】2013年安徽高考15题
讀磅
三位數除以一位數（一）
平行線的斜率
Discover Resources
面積與公式
平行四邊形
分數加減
優良作品1(沛綺)
總結
sin的平移與伸縮
Discover Topics
Correlation
Difference and Slope
Arithmetic
Real Numbers
Logarithmic Functions