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区域识别
Author:
阳光
Topic:
Polygons
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
Discover Resources
龍騰4課本
Direct Variation (Different powers of x)
Rounding Quiz (Significant Figures) 有效數字：測驗
認識對稱圖形
平面族
Discover Topics
Rational Numbers
Functions
LCM and GCD
Multiplication
Tree Diagrams