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Function: driver

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Function: model

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Line: 559
Function: get_footer

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
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Function: require_once

수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 당구공의 반사
뉴＿턴 2019.10.03 00:57 조회 752
문제 푼 사람 1명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

한 당구대의 두 변의 길이가 7 : 5이며  당구대를 더 긴 쪽을 가로로 둘때, 왼쪽 맨위에서 당구공을 45도 각도로 쳤을 때, 당구대를 일정한 시간동안 부딪히며 구르다가 다른 구석에 도달한다. 이때, 벽에는 몇 번 부딪히며, 무슨 모서리에 들어갈지 구하여라.(단, 당구공은 다른 구석에 도달할때까지 멈추지 않는다) 

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  •  
    뉴＿턴 Lv.8 2019.10.03 00:58

    비밀 댓글로 달아주세요~~~

    댓글 작성하기 좋아요0 댓글수1
    •  
      code Lv.5 2019.10.03 04:21 비밀댓글
      비밀 댓글이 등록 되었습니다!
  •  
    supermathe Lv.6 2019.10.09 03:39 비밀댓글
    확인요청중
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수1
    •  
      뉴＿턴 Lv.8 2019.10.09 08:23

      이유도 달아주실 수 있나요??

      예를 들면 그림으로

      좋아요0
  •  
    해결
    supermathe Lv.6 2019.10.09 20:49 비밀댓글
    비밀 댓글이 등록 되었습니다.
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