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圓周 (圖形H)
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
拼砌四邊形
四邊形的特性
四邉形 (四年級) 教師版
畫出對稱圖形
【案例】圆柱体内放置一个大球六个小球
Discover Resources
繡曲線
sinα + sinβ > 0 ?
杯麵
進步公式
題 2
Discover Topics
Piecewise Functions
Rational Numbers
Frequency Distribution
Vectors
Vectors 2D (Two-Dimensional)