[計量question]高分突破第四篇No.(一)-16
高分突破中第四篇模擬試題第一組第十六題(原書p.257)，
題目如下
Draw all diagonals in a regular eight-sided polygon.
What is the largest number of diagonals that meet in a single point?
原書答案為(C)4，但我想請教是否5才是對的?
因為可以從同一點到其他點的對角線，扣除緊鄰的兩個角，則為五條"對角線"。
想請大家只點迷津~感激!
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