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三角形的外心與外接圓
Author:
大園數學
三角形的外心是三條中垂線的交點,外心到三頂點等距離,此距離即為外接圓半徑。
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第八周作业
兩組對邊相等的四邊形
拼砌四邊形
算柱 (兩位數)
Nested spiral octagon
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waaachen
加法
拋物線
Addition and Subtraction of Polynomials 2 (多項式的加減法2)
单晨答空间曲面
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Poisson Distribution
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