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題 5 (附加題) *
Author:
lam
GeoGebra
只需列出算式,不需要計算答案。(取π = 3.14)
𝜋
提示: 圓面積 = 半徑 × 半徑 × π 圓的半徑 = 20 ÷ 2
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找出對稱軸
四邊形的特性
三位數除以一位數(一)
畫出對稱圖形
兩位數除以一位數(二)
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判斷柱體10
二次函數圖形(1)
封閉區域著色
變化圖形製作
用几何概型估计pi值
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Rectangle
Rotation
Quadrilaterals
General Quadrilateral
Linear Functions