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根據百分率找數量（二）: 例1
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邊形的特性
Fibonacci Clock
畫出對稱圖形
算柱 (兩位數)
Discover Resources
變色孔雀
冪函數
Proof72 徐晏翎
兩圓內外公切線
Activity 2
Discover Topics
Right Triangles
Subtraction
Tree Diagrams
Reflection
Multiplication