在△ABC中,AD是中线,DE⊥AB,△ABC的面积为8,AB=4,则DE的长为 ___ .
21-22八年级上·重庆北碚·开学考试 查看更多[5]
重庆市北碚区西南大学附属中学校2021-2022学年八年级(上)入学数学试卷广东省珠海市第九中学2021-2022学年八年级上学期期中数学试题(已下线)专题11.5 三角形高线、中线与角平分线(基础篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(人教版)(已下线)专题1.5 认识三角形-三角形三条重要线段(基础篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(浙教版)福建省厦门大学附属科技中学2023-2024学年八年级上学期期中数学试题
更新时间:2021-11-15 12:03:47
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