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anlge at centre twice angle at circumference
Author:
lamyc
GeoGebra
New Resources
兩位數除以一位數（二）
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
四邊形的特性
算柱 (兩位數)
Discover Resources
正方形的旋轉
P6 圓周01A
circle
廣義角
正四面體變菱形12面體
Discover Topics
Inequalities
Integral Calculus
Multiplication
Pythagoras or Pythagorean Theorem
Reflection