如图:已知∠ACB=90°.CD⊥AB ,垂足是D .(1)图中有几个直角三角形?是哪几个?分别说出它们的直角边和斜边.(2)∠1和∠A有什么关系?∠2和∠A呢?【有图】
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/26 15:21:09
![如图:已知∠ACB=90°.CD⊥AB ,垂足是D .(1)图中有几个直角三角形?是哪几个?分别说出它们的直角边和斜边.(2)∠1和∠A有什么关系?∠2和∠A呢?【有图】](/uploads/image/z/5631214-22-4.jpg?t=%E5%A6%82%E5%9B%BE%EF%BC%9A%E5%B7%B2%E7%9F%A5%E2%88%A0ACB%3D90%C2%B0.CD%E2%8A%A5AB+%2C%E5%9E%82%E8%B6%B3%E6%98%AFD+.%EF%BC%881%EF%BC%89%E5%9B%BE%E4%B8%AD%E6%9C%89%E5%87%A0%E4%B8%AA%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%3F%E6%98%AF%E5%93%AA%E5%87%A0%E4%B8%AA%3F%E5%88%86%E5%88%AB%E8%AF%B4%E5%87%BA%E5%AE%83%E4%BB%AC%E7%9A%84%E7%9B%B4%E8%A7%92%E8%BE%B9%E5%92%8C%E6%96%9C%E8%BE%B9.%EF%BC%882%EF%BC%89%E2%88%A01%E5%92%8C%E2%88%A0A%E6%9C%89%E4%BB%80%E4%B9%88%E5%85%B3%E7%B3%BB%3F%E2%88%A02%E5%92%8C%E2%88%A0A%E5%91%A2%3F%E3%80%90%E6%9C%89%E5%9B%BE%E3%80%91)
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