[121371] 여러 가지 사각형 - 정의(증명50), 사다리꼴, 등변사다라꼴, 평행사변형, 마름모, 직사각형, 정사각형
Synopsis
사다리꼴, 등변사다라꼴, 평행사변형, 마름모, 직사각형, 정사각형을 정의합니다. * 권장 강의 - 다각형의 성질 ...
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