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Measuring areas by placing different shapes
Author:
Shum Kwok Ching
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
直角坐標平面上的旋轉變換
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
判斷球體
三位數除以一位數（一）
Discover Resources
三角形外心
周界-平移法(教學練習一)
三角形內部一點問題
there phase Vector
柱體建築師
Discover Topics
Fractions
Volume
Pythagoras or Pythagorean Theorem
Ellipse
LCM and GCD