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七巧板
Author:
Tse Sir
GeoGebra
New Resources
圓的切線方程
圓周公式的應用
祖冲之的期望：内棋与外棋
折扣
常见四边形是否是双心四边形
Discover Resources
美麗的地球
Net of a pyramid
再作万年历单晨
随机分支长度的二分树的副本
弦中點的軌跡的副本
Discover Topics
Trapezium
Linear Regression
Differential Calculus
Confidence Interval
Isosceles Triangles