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圓周角與弦切角
Author:
周桂名
Topic:
Circle
觀察一下角度的變化 以及圓周角如何換成弦切角
GeoGebra
New Resources
三位數除以一位數（二）
直角坐標平面上的旋轉變換
判斷球體
異分母分數減法
四邊形的特性
Discover Resources
多邊形的切割與拼砌
腳踏車痕模擬
play tennis
指數圖形
橢圓規Ellipsograph (Trammel of Archimedes)
Discover Topics
Perimeter
Inequalities
Pythagoras or Pythagorean Theorem
Orthocenter
Poisson Distribution