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折紙畫橢圓
Author:
連琨銘
GeoGebra
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兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
算柱 (兩位數)
兩位數除以一位數（一）
四邊形的特性
Discover Resources
Classifying Quadrilaterals
Distributive Law 1 (分配率 1)
Trigonometric Ratios
AP的中點所形成的圖形的副本
椭圆规
Discover Topics
Division
Polynomial Functions
Rotation
Conic Sections
Optimization Problems