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达芬奇椭圆仪
Author:
蔡永志
Topic:
Conic Sections
达芬奇椭圆仪
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數加法
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
y=a(x-h)²+k
parallelogram
proof3(1-1)吳奕杰
Tusi Couple
製作對稱圖_教師示範
Discover Topics
Rhombus
Intersection
Fractions
Angles
Real Numbers