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过圆上一点作切线,三步
Author:
u.jianwang
GeoGebra
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畫出對稱圖形
兩位數除以一位數(一)
三位數除以一位數(二)
兩組對邊相等和有直角的四邊形
拼砌四邊形
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陳人瑜proof81
[問題] 已知△PAB 的面積與周長,有幾個 P 點?
平行4
等腰三角形
翰林數學_2下_CH3-4_三角形的外角大於任一內對角
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Diagrams
Vectors 2D (Two-Dimensional)
Integral Calculus
Symmetry
Set Theory