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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 활쏘기[규칙]난이도: OOOOO,노가다 40%
khr519
2020.08.02 04:15
조회 657
a,b,c 이렇게 세 사람이 활쏘기 게임을 하고있다
과녁은 가운데 원의 원주가 18.84cm이고 나머지 원은 반지름이 2cm씩 더 긴 동심원 3개이다(원은 총4개)
a가 과녁의 중심에서 4cm떨어진 곳과 6cm떨어진 곳에 화살을 쏘아 9점을 얻었고
b가 과녁의 중심에서 6cm떨어진 곳과 8cm떨어진 곳에 화살을 쏘아 13점을 얻었다면
c가 과녁의 중심에서 4cm떨어진 곳과 8cm떨어진 곳에 화살을 쏘았을때 얻을수 있는 점수의 범위를 구하시오
(OO이상,OO미만)
-
-
쭈느
Lv.1
2020.08.02 18:37
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