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incircle
Author:
xieying
Topic:
Geometry
This firgure shows in circles.
GeoGebra
GeoGebra
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畫出對稱圖形
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
拼砌四邊形
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Add and subtract 2
圖二
軌跡五、六︰移動點與兩直線保持相等距離(平行線/角平分線)
平面幾何
第一次尝试
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Mode
Diagrams
Inequalities
Isosceles Triangles
Division