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Question 2(Angle)
Author:
Chan Kwan Ho
GeoGebra
New Resources
圓的基本性質
祖冲之的期望：内棋与外棋
常见四边形是否是双心四边形
垂直線的斜率
讀磅
Discover Resources
y=x²-a的圖形
直線上的鄰角_1
德·拉·希尔(de la hier)定理
探究判定全等三角形的条件（ASA）
中國剩餘定理 (Chinese Remainder Theorem)
Discover Topics
Logic
Rational Numbers
Function Graph
Geometry
Logarithmic Functions