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Introduce tangent ratio
Author:
VCChung
GeoGebra
New Resources
四邉形 (四年級) 教師版
判斷球體
錐體建築師
兩組對邊相等的四邊形
小数 的副本
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擴分和約分
[問題] G1, G2, G3 為△ACG, △ABG, △BCG 的重心
象形圖 (找出最多/最少)
q5-8
例題1【凹口性分析】
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LCM and GCD
Logic
General Quadrilateral
Tree Diagrams
Pythagoras or Pythagorean Theorem