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Function: require_once

수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [★★★☆☆] 신기한 사각형 넓이
솔바람 2020.12.10 17:47 조회 433
문제 푼 사람 1명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

아래 그림에 직사각형 8개가 있다.

그중 7개의 넓이는 각각 1, 2, 3, 4, 5, 6, 7일 때, 나머지 직사각형 하나의 넓이를 구하여라.

(그림은 이해를 돕기 위해 만든 것이므로 길이가 정확하지 않다.)

+ 가능하면 한 변의 길이를 일일이 대입하지 않고, 나머지 직사각형의 넓이가 딱 한 가지임을 증명해 보아라.(해결 또 드립니다!)

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    다시 도전
    NimNim Lv.9 2020.12.10 17:53 비밀댓글
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      솔바람 Lv.10 2020.12.10 18:02 비밀댓글
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    해결
    NimNim Lv.9 2020.12.10 19:36 비밀댓글
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      솔바람 Lv.10 2020.12.10 19:39 비밀댓글
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