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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
Nested spiral octagon
Earth with coastline
直角坐標平面上的旋轉變換
Fibonacci Clock
畫出對稱圖形
Discover Resources
∠APB ≥ 30°
假分數化帶分數
圓的面積的副本
中职数学
圓錐曲線－圓錐截痕
Discover Topics
Scalene Triangles
Geometric Distribution
Vectors
Quadratic Functions
Cone