跳去內容

中心 (幾何)

出自維基百科,自由嘅百科全書
(由圓心跳轉過嚟)
黑色係圓周(C),藍色係直徑(D),紅色係半徑(R),紫紅色係圓心(O)。

中心幾何學上係是但一樣嘢某種意義上喺正中間嘅嘢。譬如圓心係一個圓形正中間嗰一點,從呢一點到圓周上每一點嘅距離都相等(即係半徑)。


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