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S12G4 長方形內夾正方形的周長問題
Author:
学用数学
GeoGebra
New Resources
柱體建築師
四邊形的特性
異分母分數減法
三位數除以一位數（一）
三位數除以一位數（二）
Discover Resources
Easter egg
Sequence指令練習(二維)
旋轉動畫
gjh-e01-03 未知數邊長的三角形
Archimedean spiral
Discover Topics
Vectors 3D (Three-Dimensional)
Interest Calculation
Pythagoras or Pythagorean Theorem
Quadrilaterals
Cuboid