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anlge at centre twice angle at circumference
Author:
lamyc
GeoGebra
New Resources
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
sanjiaohanshu
兩組對邊相等和有直角的四邊形
Discover Resources
繪製一次函數圖形
Conic section-ellipse&hyperbola
Multiplication of Polynomials(多項式的乘法)
同心多邊形
旋轉體：Washer Method的副本
Discover Topics
Congruence
Angles
Arithmetic Mean
Cylinder
Special Points