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Function: driver
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Cacher.php
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Function: initiateCache
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: _error_handler
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: model
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getFloatingMyInfo
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 559
Function: get_footer
File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once
수학동아 - 폴리매스
함께 풀고 싶은 문제
나도 수학쌤 문장제 문제를 변형해 문제를 내는 곳입니다.
[문장제 문제&개념응용] 왁자지껄 수들의 마을 2:놀이터의 면적은?
나레이션:날이 밝았네요. 소수는 자리에서 일어나고 아침 햇살은 방안을 환하게 비추고 있어요.
소수:하암~ 오늘은 동네 구경이나 가야지. 어제 처음 와서 모르는게 많아.
나레이션:소수는 길을 나섰어요.
몇분 뒤........
나레이션:오 소수가 놀이터를 발견했어요. 물 만난 라면(?)처럼 신나게 놀고 있는 소수에요.
소수:(멈칫)갑자기 이 놀이터의 면적이 궁금해졌어. 시간이 많으니까 여유롭게 생각해야지.
문제:(1)이 놀이터는 위 그림과 같은 모양이다. 선분 CD를 기준으로 아래쪽의 넓이가 50m2일때 전체 놀이터의 넓이를 구하시오.(단, 선분 AB와 CD는 평행이고 원주율은 3.14로 계산한다. 계산기 가능. 소수 첫째 자리까지 반올림 한다.)
(2)놀이터에는 미끄럼틀과 그네등 여러 놀이기구가 있다. 놀이기구가 있는 곳의 넓이까지 합하면 전체 넓이는 몇 cm2인가?(계산기 가능. 소수 둘째 자리에서 반올림 한다.)
지금 바로
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