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Function: driver

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Function: _error_handler

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Function: model

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Line: 559
Function: get_footer

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

수학동아 - 폴리매스
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[창의 퍼즐] [기하]어떤 육각형
전자기역학 2020.05.18 23:05 조회 680
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

1. 원에 내접하며, 변의 길이가 한 변에서 시계방향으로 차례대로 a, a, b, b, c, c인 육각형이 있다. 그럼 이 육각형의 a, a인 변 사이의 각, b, b인 변 사이의 각, c, c인 변 사이의 각의 합이 360도일까? 맞다면 2가지 이상의 방법으로 증명하고 틀렸다면 반례를 들어라.

2. 위의 육각형 조건에서 '원에 내접하는' 을 빼면 이것이 성립할까?

이 문제 어떠셨나요?

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