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4. 如圖,三個兩兩外切的圓,也都與直線相切,最大圓半徑為 100,中圓的半徑為 25,求最小圓的半徑為何? (A) (B) (C) (D)
問題詳情
4. 如圖,三個兩兩外切的圓,也都與直線相切,最大圓半徑為 100,中圓的半徑為 25,求最小圓的半徑為何?
(A)
(B)
(C)
(D)
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