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圓周 (圖形F)
Author:
Keith Ko
移動右圖中的紅線到左方虛線，就知道它是相等於左圖的哪條線。
GeoGebra
New Resources
錐體建築師
異分母分數減法
四邊形的特性
【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
Discover Resources
乘法
P2 math
堆垛
heart
圖形拼砌
Discover Topics
Circumcircle or Circumscribed Circle
Angles
Fractal Geometry
Straight Lines
Derivative