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수학동아 - 폴리매스
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[기하] 이야기로 배우는 작도
수학동아 2018.12.27 20:34 조회 1305
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

 

가을에 볼 수 있는 별자리 중에 ‘삼각형자리’가 있다. 삼각형을 닮아 모양 그대로 이름붙은 이 별자리는 기원전 400년쯤부터 있어 왔다. 그리스 문자 델타(Δ)도 닮아서 ‘델타자리’라고도 부른다. 이처럼 별자리 중에는 기본 도형과 관련된 이야기가 많다. 스토리텔링 교과서 중 ‘기본 도형과 작도’ 단원에 소개된 다양한 별자리 이야기를 만나 보자.

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