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橢圓規Ellipsograph of Parallelogram
Author:
宋政蒲
Topic:
Constructions
,
Ellipse
,
Parallelogram
現實工程上仍不易做到的橢圓畫法
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（二）
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
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拋物線
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圍周
角的認識
parabola 抛物线方程求解
Discover Topics
Linear Equations
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Calculus