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同心圓
Author:
許清惟
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
判斷球體
【案例】2018年全国1卷理科12题
拼砌四邊形
Discover Resources
【三角函數】sinx的平移
Surface area of sphere
平移動畫(平移加滑桿)
JAY三角
圆锥面
Discover Topics
Continuity
Quadrilaterals
Sphere
Cuboid
Complex Numbers