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S9G2 縮放的五角星
Author:
学用数学
GeoGebra
New Resources
科赫雪花
第八周作业1
科氏力 (Coriolis Force)
三角函数 的副本
斐波那契螺旋弧线（表格法-可动态调节）
Discover Resources
梯形有甚麼特性？
测试
circle: line from centre
边长可变的正三角形上莱洛转子的滚动
anlge at centre twice angle at circumference
Discover Topics
Arithmetic
Rhombus
Integral Calculus
Limits
Cuboid