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64回第4題
Author:
Gideon Huang
GeoGebra
New Resources
兩組對邊相等的四邊形
算柱 (兩位數)
兩位數加法
sanjiaohanshu
小数 的副本
Discover Resources
Sum of Exterior Angles of Polygons 多邊形外角和
反餘弦函數
test
rotational symmetry_2
中心投影、平行投影
Discover Topics
Vectors 2D (Two-Dimensional)
Linear Programming or Linear Optimization
Polygons
Sphere
Trigonometry