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变化的平行四边形
Author:
孙逸旻
Topic:
Parallelogram
GeoGebra
New Resources
兩位數除以一位數（一）
找出對稱軸
三位數除以一位數（二）
直角坐標平面上的旋轉變換
兩組對邊相等和有直角的四邊形
Discover Resources
test
進入拋面的平行光會反射至焦點
button
椭圆内光的反射作图步骤
翰林數學_2下_CH3-4_扣條
Discover Topics
Reflection
Confidence Interval
Means
Algebra
Integers