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圓形移動面積
Author:
AlexWang
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
兩位數加法
三位數除以一位數（二）
Discover Resources
將「文字」標示在長與寬
判斷柱體 4
數位學習社12/15
ex 5
zuiduan
Discover Topics
Rotation
LCM and GCD
Incircle or Inscribed Circle
Frequency Distribution
Pyramid