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Copy of 部分佔全部的百分率: 例1
Author:
Keith Ko
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
拼砌四邊形
球體建築師
直角坐標平面上的旋轉變換
異分母分數減法
Discover Resources
Area of Trapezium
東興題目的標準圖
相同圖形的拼砌（三角形）
other
謝爾賓斯基-六角形
Discover Topics
Equilateral Triangles
Rotation
Functions
Intersection
Ratios