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cloudyhsieh711
GeoGebra
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錐體建築師
三位數除以一位數（二）
三位數除以一位數（一）
拼砌四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
斜射光三角量測
conjugate
Comparing fractions using number lines and rectangles
斜坐標
Angle of elevation and Angle of depression(仰角和俯角)
Discover Topics
Curve Sketching
Optimization Problems
Algebra
Square
Expected Value