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圓周 (圖形B)
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
異分母分數減法
判斷球體
三位數除以一位數（一）
第八周作业
拼砌四邊形
Discover Resources
學測100-G
Testing 20170308
Copy of 立體圖形－截面
星星
工具：DimensionArrows
Discover Topics
Sine
Dilation
Hypothesis Testing
Histogram
Tangent Line or Tangent