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翰林數學_2下_CH3-1_三角形的內角與外角
Author:
翰林數學
GeoGebra
New Resources
兩組對邊相等的四邊形
判斷球體
錐體建築師
三位數除以一位數（一）
兩位數加法
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Relationships between chords and their distances from centre
圓錐截痕
第三冊2-2練習18
正弦定理的副本
斜率乘积为定值（椭圆、双曲线）
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Integers
Sine
Boxplot
Exponent
Trigonometry