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perimeter
Author:
cheng JJ
,
Tim Brzezinski
,
Steve Phelps
GeoGebra
GeoGebra
New Resources
多邊形的面積
讀磅
三位數除以一位數（二）
漂亮的摇摆曲线
三位數除以一位數（一）
Discover Resources
優良作品2(薇如)
複合圖形(五)
Volume of pyramid from triangular prism
勒洛三角形頂點A軌跡
橢圓軌跡
Discover Topics
Calculus
Quadratic Functions
Unit Circle
Addition
Linear Programming or Linear Optimization