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平行四邊形與三角形
Author:
李春培
Topic:
Area
平行四邊形與三角形
GeoGebra
New Resources
異分母分數減法
錐體建築師
画直线等分三角形的面积
三位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Difference of Two Squares 平方差 (2)
選四塊來拼砌正方形
圓錐曲線---橢圓
Remainder Theorem and Factor Theorem(餘式定理及因式定理)
基測會考數學
小三_垂直
Discover Topics
Tangent Line or Tangent
Conic Sections
Volume
Distributions
Expected Value