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旋轉對稱 Rotational symmetry
Author:
TANG TSZ YUEN
Topic:
Symmetry
GeoGebra
New Resources
三位數除以一位數（一）
兩組對邊相等的四邊形
異分母分數減法
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
Discover Resources
畢氏定理證明
摩天輪
工作紙題3
Conjecture (Tropical Hoehn's Conjecture)
正六角錐(旋轉，實體、透視)
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Fractions
Addition
Confidence Interval
Functions
Pie Chart or Circle Chart