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根據百分率找數量（一）:例1
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
找出對稱軸
四邊形的特性
美國國旗 (Codex 版)
Earth with coastline
長方體平面投影 (Codex版)
Discover Resources
task 8
Division Algorithm & Remainder Therorem 除法算式與餘式定理
學測105-9
pythLK
奔马
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Terms
Rotation
Vectors 2D (Two-Dimensional)
Rectangle
Difference and Slope