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梯形面積
Author:
官長壽(longlife)
GeoGebra
New Resources
平行線的判定
活动三：应用性质
科赫雪花
双心四边形
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
信賴區間
Conductivity
三角形
Question 5
橢圓1--同心圓法
Discover Topics
Confidence Interval
Hypothesis Testing
Bar Chart or Bar Graph
Linear Equations
Secant Line or Secant