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Introduce tangent ratio
Author:
VCChung
GeoGebra
New Resources
三位數除以一位數（二）
異分母分數減法
四邉形 (四年級) 教師版
柱體建築師
兩位數除以一位數（二）
Discover Resources
waaachen
幸運輪
gyzqx 共頂點的圓錐曲線
Copy of 劉徽的「割圓術」
Net of a pyramid
Discover Topics
Scalene Triangles
Curve Sketching
Trapezoid
Inequalities
Tangent Function