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수학동아 - 폴리매스
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[기하] 정삼각형에 꽂아요! 육팔면체 연필꽂이
수학동아 2022.04.22 05:14 조회 235
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페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

 

 

‘입체도형’이라는 단어를 들으면 어떤 도형이 떠오르나요?

 

정사면체, 정육면체, 정팔면체 등 한 가지 정다각형으로 이뤄진 정다면체를 떠올리기 쉽지만,

 

나름의 규칙을 가진 다양한 입체도형이 있습니다.

 

오늘은 그중에서도 정삼각형 8개와 정사각형 6개로 이뤄진 ‘육팔면체’를 살펴보고,

 

육팔면체 모양의 연필꽂이를 만들어 봅시다.

 

 

 

태그
#입체도형 #육팔면체 #준정다면체 #아르키메데스_다면체 #수학
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