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橢圓規Ellipsograph (Trammel of Archimedes)
Author:
宋政蒲
Topic:
Constructions
,
Ellipse
GeoGebra
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圓的基本性質
三角函数 的副本
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
常见四边形是否是双心四边形
Discover Resources
waaachen
平移
perd fr ctr bisect
Drag A or X
HHHH
Discover Topics
Cube
Congruence
Subtraction
General Quadrilateral
Square