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三角測量
Author:
1041051 陳柏維
GeoGebra
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盈利與虧蝕
第八周作业1
撒针估算面积实验
龙形曲线-分形龙2
平行線的判定
Discover Resources
圓圓的性質
Erdos-Mordell 不等式
test03繪本用
相同圖形的拼砌（梯形）
Q3-11
Discover Topics
Arithmetic Operations
Quadrilaterals
Cosine
Means
Trapezoid