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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] [기하]제이코사인
승승장구wlc 2020.05.01 23:20 조회 653
문제 푼 사람 3명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

삼각형ABC에 대해 a가 루트 21, b가 4, c가 5일때, A의 값을 구하여라

이 문제 어떠셨나요?

글쎄요

2

어려워요

0

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  •  
    K→C≡N Lv.11 2020.05.01 23:22

    A값이 뭘까요

    댓글 작성하기 좋아요0 댓글수2
    •  
      △π Lv.9 2020.05.01 23:29

      각 아닐까요?

      좋아요0
    •  
      승승장구wlc Lv.6 2020.05.02 00:05

      각이 맞아요. 소문자는 대문자의 대변입니다.대문자는 각이구요.

      좋아요0
  •  
    해결
    △π Lv.9 2020.05.01 23:31 비밀댓글
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수0
  •  
    전자기역학 Lv.8 2020.05.01 23:46

    이것도 너무 단순한 거 아닌가요? 문제에 나와있는 거 그냥 쓰면 끝나잖아요

    댓글 작성하기 좋아요0 댓글수3
    •  
      승승장구wlc Lv.6 2020.05.01 23:58

      혹시 a와A를 같은 걸로 보신 건가요?

      좋아요0
    •  
      전자기역학 Lv.8 2020.05.01 23:59

      아니요 당연히 아니죠 제2코사인 쓰면 끝나니까 그런 거죠

      좋아요0
    •  
      승승장구wlc Lv.6 2020.05.02 00:09 비밀댓글
      비밀 댓글이 등록 되었습니다!
  •  
    해결
    sicma Lv.11 2020.05.02 00:22 비밀댓글
    비밀 댓글이 등록 되었습니다.
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  •  
    해결
    별소 Lv.4 2020.05.02 12:08 비밀댓글
    비밀 댓글이 등록 되었습니다.
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