每週一題102.04.17

 

如右圖，九宮格內有兩種圖形(三角形與圓形)，若任選三格，試問：可連成一直線(鉛直線、水平線、對角線，不一定要同一個圖案)或三格同一個圖案的狀況有幾種？
(單選)九宮格

(1) 12
(2) 14
(3) 20
(4) 21
(5) 22

﹝出自101學年度指考模擬試題﹞

Date Posted: 10 Apr 2013 @ 03 14 AM
Last Modified: 18 Apr 2013 @ 01 01 PM
Posted By: hs_math
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