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ASS 的觀察
Author:
均一
GeoGebra
New Resources
异形操场
双心四边形
盈利與虧蝕
龙形曲线-分形龙2
常见四边形是否是双心四边形
Discover Resources
動態角=30
扇形柱
volume
外公切線長
sin,cos比大小
Discover Topics
Multiplication
Fractions
Polygons
Line Segment
Pythagoras or Pythagorean Theorem