問題詳情
23. 如上圖十，桌面上有一顆圓錐形巧克力，O是圓錐頂點，P是底面圓周上一點，底圓周長為2πcm， 
= 3cm，今有一隻螞蟻由P點出發繞圓錐側面一圈後回到P點，請問：螞蟻走的最短距離是多少 cm？ 
(A) 4
(B) 
(C) 
(D) 
參考答案
無參考答案
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