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圓周 (圖形G)
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
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判斷球體
第八周作业
三位數除以一位數(一)
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
等積的正方形與正三角形
底圖為圓,縱切面為正方形
中間人星星
Ruler
P4周界_上
Discover Topics
Statistical Characteristics
Perimeter
Calculus
Addition
Cosine