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Properties of Inequalities 不等式的加法與乘法性質
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
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
四邊形的特性
算柱 (兩位數)
四邉形 (四年級) 教師版
Discover Resources
Roger Test Draw
平行4
二次函數03
數學傳播39卷4期, 平面幾何公式思考
莫比乌斯带
Discover Topics
Equations
Congruence
Similarity Transformation or Similarity
Parallelogram
Exponent