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수학동아 - 폴리매스
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[잡담] 크흑
17수락 2021.12.24 08:09 조회 239
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

8개는 구했는데 100개에 어떻게 적용해야하는지 모르겠네요ㅠㅠ

 

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  •  
    화이트가드 Lv.5 2021.12.24 08:15

    거의 똑같습니다. 진심으로 거의 똑같습니다. 복잡하게 생각할 필요가 없습니다. 

    8개일 때 배치를 보시고 4m개일 때 직각삼각형의 개수도 공식화해볼 수 있어요. 

    댓글 작성하기 좋아요0 댓글수4
    •  
      17수락 Lv.9 2021.12.24 08:21

      방식이 똑같은건 알겠는데 그게 수가 어떻게 증가하는지 알 수가 없네요....

      좋아요0
    •  
      화이트가드 Lv.5 2021.12.24 08:27

      그 부분은 순수 수학입니다. 직각삼각형의 개수를 세려면 직각인 두 직선과 다른 직선 하나(두 직선과 평행이 아닌)를 고르는 개수와 같죠? 

      좋아요0
    •  
      17수락 Lv.9 2021.12.24 08:35

      답이 몇자린가요?

       

      좋아요0
    •  
      화이트가드 Lv.5 2021.12.24 08:36

      5자리입니다. 

      좋아요0
  •  
    Scubed Lv.7 2021.12.24 08:36 비밀댓글
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수1
    •  
      17수락 Lv.9 2021.12.24 08:39 비밀댓글
      비밀 댓글이 등록 되었습니다!
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