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作者：
Kelsey Powell
最新資源
Proof of a Rhombus by Construction and Deduction
bewijs stelling van Pythagoras
Geometric linkage
Translation in 3D (via x, y, z)
Dividing a 3-digit number by a 1-digit number (2)
探索資源
Simetri putar persegi panjang
Tangentenviereck
Tessellation from a hexagon
Animation 2
Activity: Medians and Centroid Dance
Regular solids.
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Sequences and Series
積分
數學
直線
多邊形
