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Function: require_once

수학동아 - 폴리매스
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실생활에서 수학이 어떻게 활용되는지 확인해 보세요!
[기하] 합동의 발견
수학동아 2018.12.28 00:01 조회 1231
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

 

“무엇이 무엇이 똑같을까~ 젓가락 두짝이 똑같아요~.” 젓가락 외에도 눈과 귀, 손과 발, 쌍둥이 등 우리 주변엔 한 쌍으로 이루어진 똑같이 생긴 물건들이 많다. 이중 수학적으로 똑같은 건 무엇일까? 수학에서 똑같다는 것은 무엇인지, 똑같은 것을 어떻게 표기하는지 알아보자.

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