수학동아 - 폴리매스

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함께 풀고 싶은 문제

창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.

[창의 퍼즐] [기하]각이 같은 오각형

△π 2020.04.30 17:48 조회 642

문제 푼 사람 0명

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

각 A, B, C, D, E가 모두 120도인 볼록오각형 ABCDE의 변의 길이가 정확히 5개의 연속인 정수가 어떤 순서로 섞여있는 것이라고 한다. 이때 AB+BC+CD의 값으로 가능한 것을 모두 구하라

이전글 [기하]원 안의 평행사변형

다음글 [작도]작도(ㅋㅋㅋㅋㅋㅋ)

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