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Author:
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New Resources
拼砌四邊形
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
gjh-g04-00 差的平方公式
DSE Circle-ACT03B Relationship Between Chords and Angles at Centre
水车应用题动画演示
三角形周長
三角形分形
Discover Topics
Secant Line or Secant
Median Line
Equilateral Triangles
Circumcircle or Circumscribed Circle
Power Functions
