[자유게시판]원의 둘레가 1km라면, 지름은 얼마나 될까? - 아이티치포유[교사수업연구모임] - 학습자료실(초등학교,중학교,고등학교,대학교,공무원,임용,자격증)

자유게시판

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주제	원의 둘레가 1km라면, 지름은 얼마나 될까?
닉네임	146 15 Warning: Undefined variable $modifyButton in /volume1/web/iteach4u/htdocs/2017/bullets/skin/default/view.php on line 44 Warning: Undefined variable $deleteButton in /volume1/web/iteach4u/htdocs/2017/bullets/skin/default/view.php on line 44	조회	2762회, 작성일:2025-02-19 19:32
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주제

원의 둘레가 1km라면, 지름은 얼마나 될까?

닉네임

146 15

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조회

2762회, 작성일:2025-02-19 19:32

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원의 둘레와 지름이라는 말 들어보셨나요?

"둘레"는 원의 테두리를 따라 한 바퀴 싹~ 돌아간 길이를 말하고요,
"지름"은 원의 중심을 지나면서 가장 긴 직선을 말해요.

둘레와 지름은 사실 아주 특별한 관계가 있어요.

π(파이)라는 숫자가 둘을 연결해 주거든요!
수학 공식으로는 이렇게 표현할 수 있어요:

C=π×d

C는 원의 둘레,
d는 지름,
π(파이)는 약 3.14로 계산하는 숫자랍니다.

둘레가 1km일 때 지름 계산하기

이제 문제를 한번 풀어볼까요? 원의 둘레가 1km라면 지름은 얼마나 될까요?

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자유게시판

둘레가 1km일 때 지름 계산하기