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圆锥的侧面展开图3D动画的副本

Author:吉顺国

拖动点C

圆锥的侧面展开图是三角形吗？

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判斷球體
三位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
兩位數除以一位數（一）

Discover Resources

二次函数的条件最值
Apollonius Problem 10 CCC poncelet
臺北區104-2
sin函數相加
圓的外切圓

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Geometric Transformations
Arithmetic
Parallelogram
Inequalities
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