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수학동아 - 폴리매스
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함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] [도형]직사각형 포장
K→C≡N 2020.05.22 16:03 조회 888
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공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

직사각형이 있다.

이걸 1cm두께의 포장지로 포장했다.

그러니 모서리나 꼭짓점이 둥글어 마음에 들지 않아 최소한의 재료만 추가해 직사각형으로 고쳤다.

그러니까 부피가 원래 직사각형의 2배가 되었다.

가로>세로>높이 일때

가능한 가로값의 최대는 얼마일까?

 

대표이미지 출처-다양한정보가 넘쳐나는 폴리매스카페 로고

cafe.naver.com/polymathfun

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