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四边形外角和

Author:陈宜红

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美國國旗 (Claude 版)
Nested spiral octagon
長方體平面投影 (Codex版)
兩組對邊相等和有直角的四邊形
四邊形的特性

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大圓在小圓上滾動
夜市麻將2
半圓柱(可改底面圓半徑、柱高)
GeoGebra绘制成绩分布条形图
多边形的外角和

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Parabola
Variance
Binomial Distribution
Similarity Transformation or Similarity
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