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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
兩位數除以一位數（二）
兩位數除以一位數（一）
畫出對稱圖形
異分母分數減法
画直线等分三角形的面积
Discover Resources
把四邊形分類
彈跳球
習題0330-2017
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
正角、負角|Positive angles & Negative angles
Discover Topics
Linear Equations
Bar Chart or Bar Graph
Sequences and Series
Division
Expected Value