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Area of Trapezium
Author:
Alex CHIK
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
判斷球體
兩組對邊相等和有直角的四邊形
兩位數加法
三位數除以一位數（二）
Discover Resources
Apollonius Problem gergonne 0
Angle between 2 planes
旋轉線段
二面角
直线与圆的位置关系
Discover Topics
Secant Line or Secant
Linear Equations
Terms
Quadratic Equations
Geometric Mean