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수학동아 - 폴리매스
본문바로가기
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 삼각형의 높이와 내접원
RTAI 2020.04.24 02:43 조회 654

삼각형의 세 개의 높이의 길이가 각각 24, 30, 40인 삼각형의 내접원의 반지름의 길이를 구해보세용!!!

(풀이과정 왠만하면 아주 간단하게 써주세용...ㅎㅎ)

 

(이게 제가 내는 첫 번째 문제인데 좀 떨리네용.........)

이 문제 어떠셨나요?

글쎄요

0

어려워요

1

  •  
    RTAI Lv.7 2020.04.24 02:45

    비밀댓글과 정답확인요청!!!

    댓글 작성하기 좋아요0 댓글수0
  •  
    ㅡㅡ Lv.5 2020.04.24 02:47

    높이가 각각 저렇다는게 무슨말이죠?

    제가 이해가 잘 안되서요

    댓글 작성하기 좋아요0 댓글수0
  •  
    RTAI Lv.7 2020.04.24 02:54

    삼각형의 높이 있죠? 그런데 높이가 하나만 있는게 아니라 세개가 있잖아요. 그 높이들의 길이가 24, 30, 40이라는 뜻이에요. 제가 실수했군요. 죄송해요:(

     

    댓글 작성하기 좋아요0 댓글수1
    •  
      GUN.007 Lv.11 2020.04.25 03:16

      높이라기 보다는 A에서 BC에 그은 수선, B에서 그은..

      이렇게 표현하는 것이 좀 더 수학적이겠네요

      좋아요1
  •  
    RTAI Lv.7 2020.04.24 02:56

    수정했습니다.

    댓글 작성하기 좋아요0 댓글수0
  •  
    RTAI Lv.7 2020.04.25 05:28

    Gun님 감사합니당

    댓글 작성하기 좋아요0 댓글수0
  •  
    부분해결
    eipi10 Lv.5 2020.04.29 21:38 비밀댓글
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수2
    •  
      RTAI Lv.7 2020.05.03 04:26

      eipi10님, 풀이과정이 맞았지만 마지막에 실수를 하셨네요.~
       

      좋아요0
    •  
      RTAI Lv.7 2020.05.03 04:28

      마지막 두 문장이 아까웠어요. 반지름을 r로 하고 풀어봐요~

      좋아요0
  •  
    해결
    솔바람 Lv.10 2020.12.24 19:50 비밀댓글
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수0
  •  
    해결
    JM Lv.6 2021.06.22 20:26 비밀댓글
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수0
  •  
    해결
    수학동아 Lv.8 2021.09.18 19:47 비밀댓글
    비밀 댓글이 등록 되었습니다.
    댓글 작성하기 댓글수0
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