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國徽
Author:
蘇鈺婷
國徽
GeoGebra
New Resources
三角函数 的副本
活动三：应用性质
折扣
科赫雪花
龙形曲线-分形龙
Discover Resources
軌跡觀察---三圓上三角形重心
橢圓軌跡
工具：DimensionArrows
Light reflected in ellipse
線的面化
Discover Topics
Fractions
Parametric Curves
Circle
Subtraction
Variance