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梯形面積(2)
Author:
官長壽(longlife)
GeoGebra
New Resources
盈利與虧蝕
常见四边形是否是双心四边形
平行線的判定
撒针估算面积实验
折扣
Discover Resources
Right Triangles in a Circle 圓內的直角三角形
正多邊形收斂
三角形移動多一格
Circumcentre
教案一
Discover Topics
Standard Deviation
Rational Numbers
Reflection
Pythagoras or Pythagorean Theorem
Linear Regression