問題詳情
1. 有一半徑 10cm 的球，則此球被平面所截得到的截圓中，最大的面積是多少 cm2？
(A)100π
(B)40π
(C)20π
(D)10π。
(A)100π
(B)40π
(C)20π
(D)10π。
參考答案
無參考答案
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