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Polygon Activity
Author:
Charlie Yip
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GeoGebra
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三位數除以一位數（二）
找出對稱軸
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
三位數除以一位數（一）
Discover Resources
畢氏定理證明
弹簧变化
Trigonometric Identities
數學電腦繪圖與解題
正圆锥展开图
Discover Topics
Function Graph
Confidence Interval
Hypothesis Testing
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Pyramid