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Function: driver
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Function: get_footer
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Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
K→C≡N
2019.11.23 20:46
조회 600
죄송합니다.
제가 실제로 필요해서 그런건데
운동장은 원이라 가정합시다.
한쪽은 높고, 그 지점에서 중심을 지나는 현을 그엇을때 만나는 반대편 점은 낮습니다.
시계방향으로 높은지점에서 출발해 2바퀴를 달린다면
높이는 W처럼 그래프가 그려집니다.
이때, 높은지점을 ㄱ이라 하고 낮은지점을 ㅈ이라 합시다.
ㄱ과 ㅈ의 중점을 ㄷ이라 하고, 선분 ㄱㅈ의 수직이등분선을 ㄷㄴ이라 합니다.
이때 ㄴ은 달리기 트랙상의 점이어야하고, ㄱ에서 ㅈ까지 반시계방향으로 달릴때 지나야 합니다.
직선 ㄷㄴ과 만나는 ㄴ이 아닌 원주상의 점을 ㅁ이라 할때,
<문제>시계방향으로만 도는 휠릭시스가 ㅁ을 20번 지나 ㄴ에 도착할때,
ㄱ에서 출발하는것이 유리한가, ㅈ에서 출발하는 것이 유리한가?
단, 초반에 체력을 최대한 덜쓰는것이 유리하다.
<기준>내맘대로
지금 바로
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