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GeoGebra
GeoGebra Classroom
GeoGebra
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Author:
凉 清
GeoGebra
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异形操场
活动三：应用性质
第八周作业2
常见四边形是否是双心四边形
三角函数 的副本
Discover Resources
Locus 軌跡(2T)
三角形，點上平分面積
星星
Travelling Waves
百分數：折扣 / 賺賠
Discover Topics
Integers
Trigonometric Functions
Vectors
Isosceles Triangles
Parabola